Montana State Death Index
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To Link Page of Earliest to 1950-1953 Death Index
Locations & Corresponding County Numbers Used in Earliest to 1953 Montana Death Index
Note: In the Index No. column of the actual indexes, the first letters are the location. The Numbers of the second part are the Item Number.
1920 - 1929: O
| ID | Index No | Last Name | First Name | Middle | Sex | Age | County Name | Date of Death | Comments |
| 53008 | Kspl 1148 | OAKES | ANNA | E | F | 56 | Flathead | 5/2/1929 | |
| 13285 | GF 1223 | OAKES | EDITH | F | 2 | Cascade | 7/26/1922 | ||
| 2467 | GF 537 | OAKES | WILLIAM | H | M | 76 | Cascade | 5/21/1920 | |
| 36552 | MslaC 1909 | OASE | ALICE | F | 17 | Missoula | 12/17/1926 | ||
| 36287 | Msla 636 | OASE | NELS | M | 64 | Missoula | 10/13/1926 | ||
| 27960 | Bt-4069 | OATES | ELIZABETH | R | F | 50 | Silver Bow | 10/4/1925 | |
| 26261 | SB 1409 | OATFIELD | SUSAN | F | 82 | Silver Bow | 7/1/1924 | ||
| 55368 | Tr 131 | OATLEY | NANCY | A | F | 68 | Treasure | 12/14/1929 | |
| 33880 | Cho 526 | OATS | ARTHUR | M | 47 | Choteau | 10/25/1926 | ||
| 46882 | Hl 385 | OATS | EARTH WOMAN | F | -1 | Hill | 2/17/1928 | ||
| 27905 | Bt-4016 | OATS | EDWARD | M | 55 | Silver Bow | 9/6/1925 | ||
| 8577 | HI 157 | OATS | INFANT | M | -1 | Hill | 7/1/1921 | ||
| 19248 | Hl 224 | OATS | IRENE | F | -1 | Hill | 10/3/1923 | ||
| 3191 | Hl 139 | OATS | JOHN | M | -1 | Hill | 6/10/1920 | ||
| 48165 | Phil 449 | OBACH | BEATRICE | F | -1 | Phillips | 3/6/1928 | ||
| 54153 | Phil 539 | O'BACK | MARY | F | 85 | Phillips | 7/15/1929 | ||
| 19742 | Lstn 556 | OBEE | CHRISTOPHER | M | 55 | Fergus | 12/6/1923 | ||
| 12819 | Fer 322 | OBEE | J. | M | M | 0 | Fergus | 5/21/1922 | |
| 37570 | Sdn 446 | OBERG | CARL | M | 45 | Sheridan | 6/2/1926 | ||
| 53788 | Msla 770 | OBERG | CHRIS | M | 55 | Missoula | 10/1/1929 | Day not known | |
| 34633 | GF 2263 | OBERG | LARS | M | 76 | Cascade | 1/4/1926 | ||
| 11000 | Ana 426 | OBERG | MARY | E | F | -1 | Deer Lodge | 3/9/1922 | |
| 28484 | DL-1161 | OBERG | PETRA | F | 55 | Deer Lodge | 1/8/1925 | ||
| 3525 | Liv 139 | OBERG | TOLINE | M | 21 | Park | 6/25/1920 | ||
| 4816 | Ri 112 | OBERGFELL | CHARLEY | M | 52 | Richland | 6/11/1920 | ||
| 42213 | MslaC 2154 | OBERHOUSER | LOUIS | W | M | 62 | Missoula | 12/18/1927 | |
| 11220 | BH 426 | OBERLANDER | HARKMAN | M | 58 | Big Horn | 11/14/1922 | ||
| 33833 | Cbn 468 | OBERLANDER | LAWRENCE | J | M | -1 | Carbon | 10/17/1926 | |
| 1425 | Cas 113 | OBERMAN | FRANK | M | 65 | Cascade | 4/29/1920 | ||
| 50689 | Bt 6654 | OBERST | FRANK | M | 46 | Silver Bow | 6/4/1929 | ||
| 51265 | Cbn 673 | OBERT | BERT | M | 28 | Carbon | 7/2/1929 | ||
| 12315 | Cbn 210 | OBERT | CHAS. | D | M | -1 | Carbon | 5/21/1922 | |
| 54625 | RL 512 | OBERT | DOMINICK | M | 0 | Carbon | 8/8/1929 | ||
| 20868 | RL 254 | OBERT | INFANT | M | 0 | Carbon | 8/9/1923 | ||
| 31397 | RL-312 | OBERT | JOSEPH | M | 53 | Carbon | 3/8/1925 | ||
| 17485 | Bt 2869 | OBERT | MARGARET | F | -1 | Silver Bow | 10/11/1923 | ||
| 12329 | Cbn 225 | OBERT | RAYMOND | J | M | -1 | Carbon | 8/4/1922 | |
| 44724 | Bt 5880 | OBERTEIS | MRS. EMMA | J | F | 40 | Silver Bow | 6/8/1928 | |
| 24238 | Hav 521 | OBIE | BABY | F | 0 | Hill | 12/12/1924 | ||
| 19439 | La 15 | OBLINGER | VERDA | B | F | -1 | Lake | 11/6/1923 | |
| 23033 | Cho 405 | OBMSEN | JANE | F | 62 | Choteau | 4/16/1924 | ||
| 41948 | Min 156 | OBORNE | HOWARD | A | M | 1 | Mineral | 12/25/1927 | |
| 34489 | Fltd 795 | O'BOYLE | ALOYSIUS | M | 1 | Flathead | 7/2/1926 | ||
| 11950 | Bt 2170 | O'BOYLE | ANTHONY | J | M | 52 | Silver Bow | 7/27/1922 | |
| 16810 | Blgs 1112 | O'BOYLE | DANIEL | C | M | 59 | Yellowstone | 12/9/1923 | |
| 28078 | Bt-4183 | OBRADOVICH | INFANT | M | 0 | Silver Bow | 12/10/1925 | ||
| 28725 | Fal-173 | O'BRIAN | ANNIE | F | 54 | Fallon | 5/14/1925 | ||
| 38382 | Bl 747 | O'BRIAN | LUCY | S | F | 28 | Blaine | 9/9/1927 | |
| 38385 | Bl 750 | O'BRIAN | LUCY | F | 29 | Blaine | 9/10/1927 | ||
| 51236 | Cbn 644 | O'BRIAN | MARGARET | F | 54 | Carbon | 2/7/1929 | ||
| 15479 | Ri 194 | O'BRIEN | ADDISON | M | -1 | Richland | 1/6/1922 | ||
| 3630 | Lstn 181 | O'BRIEN | AGNES | F | 14 | Fergus | 8/1/1920 | ||
| 44707 | Bt 5862 | O'BRIEN | ALBERT | M | 40 | Silver Bow | 5/30/1928 | ||
| 26259 | SB 1406 | O'BRIEN | ANNIE | F | 46 | Silver Bow | 6/30/1924 | ||
| 1170 | Bt 854 | O'BRIEN | ARTHUR | M | 65 | Silver Bow | 3/6/1920 | ||
| 21117 | SB 1157 | O'BRIEN | AUDREY | F | 2 | Silver Bow | 6/4/1923 | ||
| 758 | Bt 1094 | O'BRIEN | BABY | M | 0 | Silver Bow | 8/20/1920 | ||
| 1209 | Bt 894 | O'BRIEN | BABY | F | -1 | Silver Bow | 3/27/1920 | ||
| 1210 | Bt 895 | O'BRIEN | BABY | M | -1 | Silver Bow | 3/27/1920 | ||
| 51633 | DL2062 | O'BRIEN | BARTHOLOMEW | M | 55 | Deer Lodge | 9/22/1929 | ||
| 55039 | SB 2735 | O'BRIEN | BATT | M | 70 | Silver Bow | 10/15/1929 | ||
| 17480 | Bt 2864 | O'BRIEN | BERNARD | M | 41 | Silver Bow | 10/9/1923 | ||
| 18854 | Gld 304 | O'BRIEN | CHARLES | M | 1 | Dawson | 7/13/1923 | no age given | |
| 32550 | BH 813 | O'BRIEN | CHARLES | H | M | -1 | Big Horn | 10/28/1926 | |
| 39211 | Bt 5355 | O'BRIEN | CHARLES | M | 40 | Silver Bow | 9/18/1927 | ||
| 45726 | Fal 264 | O'BRIEN | DAN | M | 58 | Fallon | 10/20/1928 | ||
| 1037 | Bt 716 | O'BRIEN | DANIEL | M | 53 | Silver Bow | 1/26/1920 | ||
| 7349 | DL 392 | O'BRIEN | DANIEL | M | 39 | Deer Lodge | 4/6/1921 | ||
| 48820 | SB 2294 | O'BRIEN | DANIEL | M | 53 | Silver Bow | 1/1/1928 | ||
| 51742 | Fal 290 | O'BRIEN | EDWARD | P | M | 39 | Fallon | 7/4/1929 | |
| 19004 | Hav 431 | O'BRIEN | ELEANOR | M | F | 48 | Hill | 11/20/1923 | |
| 18673 | GF 1554 | O'BRIEN | ELLEN Mrs | C | F | 75 | Cascade | 10/4/1923 | |
| 19561 | Lin 273 | O'BRIEN | GEO ALEXANDER | M | 2 | Lincoln | 8/19/1923 | ||
| 15480 | Ri 196A | O'BRIEN | HAROLD | M | -1 | Richland | 1/7/1922 | ||
| 4700 | Rav 160 | O'BRIEN | HARRIETT | E | F | 62 | Ravalli | 7/16/1920 | |
| 32390 | Ana 1083 | O'BRIEN | HARRY | M | 41 | Deer Lodge | 9/24/1926 | ||
| 38400 | Bl 765 | O'BRIEN | INFANT | M | -1 | Blaine | 12/1/1927 | ||
| 11904 | Bt 2121 | O'BRIEN | JAMES | M | 37 | Silver Bow | 6/26/1922 | ||
| 23702 | GF 1707 | O'BRIEN | JAMES | M | 80 | Cascade | 3/23/1924 | ||
| 40305 | GF 2593 | O'BRIEN | JAMES | W | M | 54 | Cascade | 1/10/1927 | |
| 22580 | Bt 3291 | O'BRIEN | JAS. | M | 69 | Silver Bow | 6/23/1924 | ||
| 40545 | GF 2837 | O'BRIEN | JERRY | M | 67 | Cascade | 9/28/1927 | ||
| 4242 | MslaC 411 | O'BRIEN | JOHN | M | 57 | Missoula | 10/15/1920 | ||
| 11715 | Bt 1922 | O'BRIEN | JOHN | M | 57 | Silver Bow | 3/1/1922 | ||
| 13701 | Hel 643 | O'BRIEN | JOHN | N | M | 73 | Lewis & Clark | 2/15/1922 | |
| 21111 | SB 1150 | O'BRIEN | JOHN | M | 7 | Silver Bow | 5/28/1923 | ||
| 23142 | Dil 108 | O'BRIEN | JOHN | M | 55 | Beaverhead | 4/2/1924 | ||
| 36728 | Pon 366 | O'BRIEN | JOHN | H | M | 72 | Pondera | 4/22/1926 | |
| 36982 | Rbd 601 | O'BRIEN | JOHN | M | 54 | Rosebud | 8/30/1926 | ||
| 50587 | Bt 6552 | O'BRIEN | JOHN | M | 79 | Silver Bow | 5/3/1929 | ||
| 16166 | Val 315 | O'BRIEN | JOSEPH | P | M | 56 | Valley | 8/22/1922 | |
| 27878 | Bt-3988 | O'BRIEN | JOSEPH | G | M | 31 | Silver Bow | 8/21/1925 | |
| 38247 | BH 843 | O'BRIEN | JOSEPH | B | M | -1 | Big Horn | 2/9/1927 | |
| 26878 | Ana-896 | O'BRIEN | JOSEPHINE | F | 49 | Deer Lodge | 7/11/1925 | ||
| 39121 | Bt 5263 | O'BRIEN | KATE | F | 77 | Silver Bow | 7/8/1927 | ||
| 39129 | Bt 5271 | O'BRIEN | LAURA | F | 38 | Silver Bow | 7/15/1927 | ||
| 6785 | Bt 1641 | O'BRIEN | MARGARET | F | 60 | Silver Bow | 8/1/1921 | ||
| 22790 | Bt 3511 | O'BRIEN | MARGARET | B | F | 60 | Silver Bow | 11/19/1924 | |
| 43133 | SB 2231 | O'BRIEN | MARIE | F | 60 | Silver Bow | 10/29/1927 | ||
| 35850 | Liv 616 | O'BRIEN | MARTIN | J | M | 65 | Park | 5/21/1926 | |
| 28136 | Bvd-330 | O'BRIEN | MARY | A | F | 65 | Beaverhead | 10/24/1925 | |
| 45318 | Cho 611 | O'BRIEN | MARY | F | 66 | Choteau | 5/19/1928 | ||
| 28610 | DL-1282 | O'BRIEN | MICHAEL | M | 60 | Deer Lodge | 9/24/1925 | ||
| 33393 | Bt 4628 | O'BRIEN | MIKE | M | 59 | Silver Bow | 7/30/1926 | ||
| 8533 | Hel 604 | O'BRIEN | MINNIE | F | 57 | Lewis & Clark | 11/29/1921 | ||
| 5112 | SB 329 | O'BRIEN | MRS. ANNIE | F | 64 | Silver Bow | 2/21/1920 | ||
| 29509 | Hav-565 | O'BRIEN | MRS. JOHN | E | F | 25 | Hill | 7/16/1925 | |
| 27070 | Bl-499 | O'BRIEN | MRS. MARY | F | 61 | Blaine | 4/19/1925 | ||
| 26916 | Ana-940 | O'BRIEN | PATRICK | A | M | 43 | Deer Lodge | 10/18/1925 | |
| 33093 | Bt 4333 | O'BRIEN | PATRICK | J | M | 64 | Silver Bow | 2/19/1926 | |
| 45649 | DL 1890 | O'BRIEN | RICHARD | F | M | 44 | Deer Lodge | 12/8/1928 | |
| 22373 | Bt 3077 | O'BRIEN | ROBERT | A | M | 3 | Silver Bow | 2/17/1924 | |
| 44848 | Bt 6005 | O'BRIEN | ROBERT | M | 45 | Silver Bow | 8/29/1928 | ||
| 30165 | Lin-386 | O'BRIEN | SARAH | J | F | 60 | Lincoln | 9/17/1925 | |
| 6198 | Blgs 543 | O'BRIEN | SISTER MARY | R | F | 42 | Yellowstone | 2/21/1921 | |
| 12181 | Bt 2406 | O'BRIEN | SYLVESTER | M | 46 | Silver Bow | 12/24/1922 | ||
| 7456 | DL 498 | O'BRIEN | THOS | J | M | 48 | Deer Lodge | 9/19/1921 | |
| 10468 | SB 735 | O'BRIEN | TIMOTHY | J | M | 38 | Silver Bow | 9/27/1921 | |
| 52134 | GF 3505 | O'BRIEN | VIRGINIA | F | 28 | Cascade | 6/1/1929 | ||
| 26225 | SB 1373 | O'BRIEN | WILLIAM | M | 61 | Silver Bow | 5/12/1924 | ||
| 43150 | SB 2249 | O'BRIEN | WILLIAM | M | 45 | Silver Bow | 11/29/1927 | ||
| 33384 | Bt 4620 | O'BRIEN | WM | F | M | 55 | Silver Bow | 7/27/1926 | |
| 41411 | La 368 | O'BRINE | BETTY | G | F | -1 | Lake | 8/26/1927 | |
| 11973 | Bt 2195 | O'BRINE | JOHN | J | M | 48 | Silver Bow | 8/21/1922 | |
| 38870 | Bt 5003 | OCEJA | JOSEPH | M | 38 | Silver Bow | 2/9/1927 | ||
| 16817 | Blgs 1119 | OCEPPIK | TONY | M | 45 | Yellowstone | 12/17/1923 | ||
| 24096 | Gld 388 | OCHESENFIELD | BABY | M | -1 | Dawson | 9/29/1924 | ||
| 24052 | Gld 344 | OCHILLES | PAUL | M | 15 | Dawson | 2/14/1924 | aka ACHILLES | |
| 35401 | Hl 310 | OCHINO | JOHN | M | -1 | Hill | 7/29/1926 | ||
| 7417 | DL 459 | OCHIS | MARIA | F | 39 | Deer Lodge | 6/28/1921 | ||
| 27181 | Blgs-1388 | OCHOA | MARY | F | -1 | Yellowstone | 2/12/1925 | ||
| 54832 | San 486 | OCHSNER | ELIZABETH | F | 89 | Sanders | 12/4/1929 | ||
| 47037 | Kspl 1056 | O'CLAIR | ROBERT | M | 79 | Flathead | 7/11/1928 | ||
| 52608 | Hav 942 | OCONNELL | DANIEL | M | 70 | Hill | 1/20/1929 | ||
| 52854 | Hel 2157 | OCONNELL | HANNAH | F | 65 | Lewis & Clark | 12/8/1929 | ||
| 50817 | Bt 6782 | OCONNELL | INFANT.OF JOHN | M | 0 | Silver Bow | 8/18/1929 | ||
| 52355 | GF 3728 | OCONNELL | MARYANN | F | -1 | Cascade | 12/31/1929 | ||
| 3039 | Hel 305 | O'CONNELL | ANN | F | 90 | Lewis & Clark | 5/12/1920 | ||
| 27457 | Boz-617 | O'CONNELL | ANNA | F | 65 | Gallatin | 10/16/1925 | ||
| 6649 | Bt 1502 | O'CONNELL | BABY | M | -1 | Silver Bow | 4/20/1921 | ||
| 22177 | Boz 455 | O'CONNELL | CATHERINE | F | 75 | Gallatin | 2/24/1924 | ||
| 33014 | Bt 4254 | O'CONNELL | CORNELIUS | J | M | 73 | Silver Bow | 1/14/1926 | |
| 50035 | Blgs 2454 | O'CONNELL | DORIS | F | 1 | Yellowstone | 6/11/1929 | ||
| 1269 | Bt 953 | O'CONNELL | JAMES | M | 13 | 58 | Silver Bow | 5/3/1920 | |
| 6396 | Boz 232 | O'CONNELL | JOHN | E | M | 11 | Gallatin | 5/10/1921 | |
| 22381 | Bt 3085 | O'CONNELL | JOHN | M | 44 | Silver Bow | 2/24/1924 | ||
| 23781 | GF 1790 | O'CONNELL | JOHN | J | M | 48 | Cascade | 6/9/1924 | |
| 38730 | Boz 812 | O'CONNELL | JOHN | S | M | -1 | Gallatin | 8/31/1927 | |
| 8663 | Kspl 211 | O'CONNELL | MARGURETE | F | 49 | Flathead | 5/1/1921 | ||
| 33669 | Bt 4906 | O'CONNELL | MARTIN | M | 0 | Silver Bow | 12/25/1926 | ||
| 4086 | MslaC 255 | O'CONNELL | MARY | H | M | 53 | Missoula | 1/25/1920 | |
| 27948 | Bt-4059 | O'CONNELL | MARY | F | 91 | Silver Bow | 9/28/1925 | ||
| 22609 | Bt 3321 | O'CONNELL | MAURICE | F | M | 53 | Silver Bow | 7/16/1924 | |
| 34709 | GF 2339 | O'CONNELL | PETER | M | 61 | Cascade | 3/28/1926 | ||
| 13759 | Hel 702 | O'CONNELL | ROBERT | M | 0 | Lewis & Clark | 5/12/1922 | ||
| 22478 | Bt 3185 | O'CONNELL | ROBERT LEE | M | -1 | Silver Bow | 4/28/1924 | ||
| 28676 | DLCy-149 | O'CONNELL | SISTER MARY | L | F | 63 | Powell | 6/12/1925 | aka Sister Mary |
| 33312 | Bt 4552 | O'CONNELL | SOPHIA | A | F | 72 | Silver Bow | 6/10/1926 | |
| 13730 | Hel 673 | O'CONNELL | WM. | M | 60 | Lewis & Clark | 3/18/1922 | ||
| 50486 | Bt 6452 | O'CONNER | FRANK | M | 57 | Silver Bow | 3/20/1929 | ||
| 52532 | Gra 371 | O'CONNER | IDA | B | F | 50 | Granite | 9/18/1929 | |
| 48602 | Ri 633 | O'CONNER | INF. OF JAMES | F | -1 | Richland | 12/9/1928 | ||
| 45006 | Bt 6164 | O'CONNER | ORVILLE | J | M | 26 | Silver Bow | 11/15/1928 | |
| 48658 | RL 492 | O'CONNER | Wm. | M | 34 | Carbon | 12/29/1928 | ||
| 4379 | Musl 229 | O'CONNOR | BABY | M | 0 | Musselshell | 11/8/1920 | ||
| 4845 | Ri 752 | O'CONNOR | CHAS | P | M | 1 | Richland | 11/2/1920 | age unknown |
| 26941 | Ana-965 | O'CONNOR | CORNELIUS | M | 69 | Deer Lodge | 12/11/1925 | ||
| 28217 | Cas-469 | O'CONNOR | EDWARD | J | M | 62 | Cascade | 6/24/1925 | |
| 2241 | Gal 96 | O'CONNOR | JOHN | M | 60 | Gallatin | 1/15/1920 | ||
| 35760 | Lin 416 | O'CONNOR | JOHN | M | 85 | Lincoln | 2/4/1926 | ||
| 13478 | Gld 214 | O'CONNOR | JOSEPH | M | 12 | Dawson | 3/28/1922 | ||
| 18154 | DL 950 | O'CONNOR | JOSEPH | M | 48 | Deer Lodge | 12/19/1923 | ||
| 12791 | Fal 96 | O'CONNOR | M. | M | 0 | Fallon | 7/24/1922 | ||
| 2520 | GF 590 | O'CONNOR | MARY | F | 91 | Cascade | 8/5/1920 | ||
| 38160 | Ana 1256 | O'CONNOR | MARY | F | 54 | Deer Lodge | 8/26/1927 | ||
| 22849 | Bt 3573 | O'CONNOR | MAXINE | F | 20 | Silver Bow | 12/21/1924 | ||
| 39185 | Bt 5329 | O'CONNOR | MICHAEL | M | 59 | Silver Bow | 8/25/1927 | ||
| 8252 | Gra 111 | O'CONNOR | MICHAL | M | 56 | Granite | 11/14/1921 | ||
| 1795 | DL 295 | O'CONNOR | NORA | F | 41 | Deer Lodge | 8/3/1920 | ||
| 22310 | Bt 3008 | O'CONNOR | NORA | F | 50 | Silver Bow | 1/18/1924 | ||
| 37862 | Val 613 | O'CONNOR | TIMOTHEY | M | 64 | Valley | 8/2/1926 | ||
| 52733 | Hel 2035 | O'DAR | BETTY | R | F | -1 | Lewis & Clark | 4/29/1929 | |
| 33606 | Bt 4842 | O'DAY | MARY | F | 57 | Silver Bow | 11/28/1926 | ||
| 37770 | Tn 314 | O'DAY | PAUL | M | 0 | Teton | 3/24/1926 | ||
| 13110 | GF 1044 | ODDEN | ANNIE | F | 56 | Cascade | 1/13/1922 | ||
| 4944 | Roos 132 | ODDEN | HENRY | M | 6 | Roosevelt | 10/13/1920 | ||
| 38125 | Ana 1220 | O'DEA | NORA | J | F | 10 | Deer Lodge | 6/21/1927 | |
| 26431 | Sdn 345 | ODEGARD | BABY | M | 0 | Sheridan | 11/25/1924 | ||
| 52241 | GF 3612 | ODEGARD | EMIL | J | M | -1 | Cascade | 9/18/1929 | |
| 45819 | Fltd 1047 | ODEGARD | HAROLD | A | M | 11 | Flathead | 8/8/1928 | |
| 2400 | GF 470 | ODEGARD | RUSSEL | F | M | 1 | Cascade | 3/16/1920 | |
| 1432 | Cas 120 | ODEGARD | RUTH | M | F | 1 | Cascade | 6/29/1920 | age unknown |
| 9842 | Pon 88 | ODELL | HARRIS | W | M | 67 | Pondera | 2/15/1921 | |
| 34119 | DL 1341 | ODELL | HUBERT | M | 18 | Deer Lodge | 1/18/1926 | ||
| 51252 | Cbn 660 | O'DELL | BEN | M | 72 | Carbon | 5/30/1929 | ||
| 36672 | Phil 378 | O'DELL | FRED | M | 68 | Phillips | 10/9/1926 | ||
| 11224 | BH 428A | O'DELL | JACK | D | M | -1 | Big Horn | 12/5/1922 | |
| 16971 | Boz 412 | O'DELL | JOHN | L | M | 2 | Gallatin | 6/25/1923 | |
| 14124 | LC 226 | O'DELL | LEONARD | M | 58 | Lewis & Clark | 9/21/1922 | ||
| 43233 | Stw 467 | O'DELL | O | F | M | 55 | Stillwater | 6/26/1927 | |
| 41320 | Kspl 981 | O'DELL | RAY | E | M | 30 | Flathead | 10/18/1927 | |
| 25736 | Rav 525 | ODELLA | MRS. AMELIA | V | F | 64 | Ravalli | 3/5/1924 | |
| 21421 | Tn 213 | ODEMALD | JACOB | M | 80 | Teton | 4/28/1923 | ||
| 40129 | Fer 684 | ODENWALD | FRANK | J | M | 43 | Fergus | 4/18/1927 | |
| 7211 | Cho 221 | ODETT | LOUISE | F | -1 | Choteau | 6/22/1921 | ||
| 12383 | Cho 295 | O'DETT | MARY | F | -1 | Choteau | 7/1/1922 | ||
| 22632 | Bt 3348 | ODGERS | MARY | C | F | 58 | Silver Bow | 8/1/1924 | |
| 22633 | Bt 3349 | ODGERS | Wm. | J | M | 53 | Silver Bow | 8/1/1924 | |
| 35003 | Gla 599 | O'DONALD | JAMES | M | 0 | Glacier | 12/14/1926 | ||
| 26161 | SB 1305 | O'DONNELL | BABY | F | 0 | Silver Bow | 2/8/1924 | ||
| 45482 | DL 1724 | O'DONNELL | BERNARD | M | 5 | Deer Lodge | 2/14/1928 | ||
| 29197 | GF-2190 | O'DONNELL | CHARLES | L | M | 40 | Cascade | 9/27/1925 | |
| 32332 | Ana 1027 | O'DONNELL | CHAS | L | M | -1 | Deer Lodge | 5/14/1926 | |
| 11074 | Ana 503 | O'DONNELL | DAN | M | -1 | Deer Lodge | 8/22/1922 | ||
| 11954 | Bt 2174 | O'DONNELL | DOMINICK | M | 28 | Silver Bow | 7/30/1922 | ||
| 25332 | MslaC 1257 | O'DONNELL | DOMINICK | M | 92 | Missoula | 3/22/1924 | ||
| 21091 | SB 1130 | O'DONNELL | ED | M | 67 | Silver Bow | 5/6/1923 | ||
| 22751 | Bt 3471 | O'DONNELL | FLORENCE | M | F | 42 | Silver Bow | 10/24/1924 | |
| 54367 | Rav 1023 | O'DONNELL | FRANCIS | E | F | -1 | Ravalli | 5/19/1929 | |
| 39208 | Bt 5352 | O'DONNELL | HONORIA | F | 86 | Silver Bow | 9/12/1927 | ||
| 31651 | SB-1592 | O'DONNELL | INFANT | F | 0 | Silver Bow | 3/11/1925 | ||
| 22294 | Bt 2991 | O'DONNELL | JAMES | M | 59 | Silver Bow | 1/5/1924 | ||
| 45557 | DL 1801 | O'DONNELL | JAMES | M | 51 | Deer Lodge | 7/1/1928 | ||
| 21781 | Ana 816 | O'DONNELL | JOHN | M | 62 | Deer Lodge | 12/27/1924 | ||
| 40045 | Fal 221 | O'DONNELL | JOHN | J | M | 3 | Fallon | 2/10/1927 | |
| 43655 | Ana 1357 | O'DONNELL | JOHN | M | 65 | Deer Lodge | 3/29/1928 | ||
| 44917 | Bt 6076 | O'DONNELL | JOHN | M | 57 | Silver Bow | 10/3/1928 | ||
| 50679 | Bt 6644 | O'DONNELL | JOHN | W | M | 60 | Silver Bow | 6/2/1929 | |
| 31679 | SB-1620 | O'DONNELL | JOSEPH | P | M | 19 | Silver Bow | 4/2/1925 | |
| 53778 | Msla 752 | O'DONNELL | JOSEPH | V | M | 42 | Missoula | 8/31/1929 | |
| 3830 | MC 224 | O'DONNELL | JOSEPHINE | F | 1 | Custer | 4/15/1920 | age unknown | |
| 32326 | Ana 1021 | O'DONNELL | JOSEPHINE | F | 1 | Deer Lodge | 5/4/1926 | ||
| 39490 | Cas 603 | O'DONNELL | LEROY | M | 14 | Cascade | 7/30/1927 | ||
| 27216 | Blgs-1423 | O'DONNELL | LOUISE | F | 63 | Yellowstone | 4/12/1925 | ||
| 34543 | Fltd 933 | O'DONNELL | LOUISE | F | 1 | Flathead | 12/1/1926 | ||
| 3835 | MC 229 | O'DONNELL | MARY | B | F | 43 | Custer | 4/22/1920 | |
| 16400 | Ana 592 | O'DONNELL | MARY | M | 0 | Deer Lodge | 4/18/1923 | ||
| 413 | Blgs 357 | O'DONNELL | MICHAEL | M | 56 | Yellowstone | 3/24/1920 | ||
| 17253 | Bt 2635 | O'DONNELL | MICHAEL | M | 77 | Silver Bow | 4/30/1923 | ||
| 27653 | Bt-3761 | O'DONNELL | MICHAEL | J | M | 34 | Silver Bow | 4/4/1925 | |
| 33270 | Bt 4510 | O'DONNELL | MICHAEL | M | 47 | Silver Bow | 5/11/1926 | ||
| 50786 | Bt 6751 | O'DONNELL | MICHAEL | M | 56 | Silver Bow | 7/27/1929 | ||
| 22577 | Bt 3288 | O'DONNELL | NEIL | M | 66 | Silver Bow | 6/20/1924 | ||
| 21709 | Ana 741 | O'DONNELL | PATRICK | F | M | Deer Lodge | 5/23/1924 | Age unknown | |
| 16700 | Blgs 1001 | O'DONNELL | PETER | M | 52 | Yellowstone | 6/20/1923 | ||
| 36794 | PR 88 | O'DONNELL | ROBT | R | M | 2 | Powder River | 2/4/1926 | |
| 34855 | GF 2486 | O'DONNELL | THOS | M | 78 | Cascade | 9/19/1926 | ||
| 40640 | Gla 626 | O'DONNELL | WILLIAM | R | M | 26 | Glacier | 1/6/1927 | |
| 40656 | Gla 645 | O'DONNELL | WILLIAM | R | M | 26 | Glacier | 1/6/1927 | |
| 888 | Bt 1224 | O'DONNELL JR | DENNIS | M | 31 | Silver Bow | 11/10/1920 | ||
| 23055 | Cho 428 | O'DONNOL | JAMES | M | 55 | Choteau | 9/12/1924 | aka GRIFFIN | |
| 11719 | Bt 1926 | O'DONOHUE | DANIEL | J | M | 73 | Silver Bow | 3/3/1922 | |
| 17211 | Bt 2591 | O'DONOHUE | DANIEL | M | 50 | Silver Bow | 4/3/1923 | ||
| 45953 | GF 2955 | ODSON | SAMUEL | M | 69 | Cascade | 1/30/1928 | ||
| 1378 | Bvd 163 | ODSTROM | CARL | M | 22 | Beaverhead | 11/16/1920 | ||
| 53775 | Msla 749 | O'DWYER | FRANK | M | 35 | Missoula | 8/19/1929 | ||
| 36312 | MslaC 1671 | OECHELI | RHODA | A | F | 52 | Missoula | 1/17/1926 | |
| 22072 | Blgs 1257 | OEHLER | ALICE | J | F | 1 | Yellowstone | 7/29/1924 | |
| 11493 | Blgs 910 | OEHLER | CARL | M | 0 | Yellowstone | 12/22/1922 | ||
| 32223 | Yel-607 | OEHLER | CARL | G | M | 28 | Yellowstone | 2/13/1925 | |
| 1071 | Bt 752 | OEHRLE | MRS. NELLIE | E | F | 43 | Silver Bow | 2/24/1920 | |
| 40483 | GF 2775 | OELEIS | FELIX | H | M | 28 | Cascade | 7/2/1927 | |
| 34849 | GF 2480 | OELEIS | LILLIAN | M | F | 52 | Cascade | 9/12/1926 | |
| 23890 | GF 1905 | OELIES | THOMAS | H | M | 64 | Cascade | 10/16/1924 | |
| 5035 | Roos 77 | OELKERS | HENRY | D | M | 55 | Roosevelt | 3/3/1920 | |
| 39733 | Daw 247 | OELLERMAN | GEO | H | M | 4 | Dawson | 3/31/1927 | |
| 40797 | Gld 565 | OELLERMAN | JOHN | H | M | -1 | Dawson | 11/16/1927 | |
| 20690 | Rav 502 | OERTLI | MARGARETTE | F | 74 | Ravalli | 12/13/1923 | ||
| 11798 | Bt 2012 | OESCHSLI | JOHN | J | M | 27 | Silver Bow | 4/13/1922 | |
| 33326 | Bt 4563 | OESCHSLI | JOHN | H | M | 66 | Silver Bow | 6/14/1926 | |
| 2834 | Gra 72 | OETTENGER | JOSEPHINE | M | 47 | Granite | 6/3/1920 | ||
| 36373 | MslaC 1732 | O'FARRELL | EDWARD | M | 61 | Missoula | 4/15/1926 | ||
| 36531 | MslaC 1888 | OFF | JOHN | M | 84 | Missoula | 11/22/1926 | ||
| 43619 | Ana 1318 | OFFER | SELMA | V | F | 31 | Deer Lodge | 1/6/1928 | |
| 42399 | Pon 424 | OFFERDAHL | JULIUS | M | 41 | Pondera | 4/3/1927 | ||
| 35188 | Hel 1383 | OFFERLE | ANNA | E | F | 49 | Lewis & Clark | 1/4/1926 | |
| 5514 | SwG 61 | OFFICER | GENE | M | -1 | Sweet Grass | 9/2/1920 | ||
| 37673 | SwG 268 | OFFICER | MARY | O | F | -1 | Sweet Grass | 4/14/1926 | |
| 38124 | Ana 1219 | OFFNER | CHARLES | M | 67 | Deer Lodge | 6/19/1927 | ||
| 35271 | Hel 1468 | OFFORD | MARY | F | 82 | Lewis & Clark | 5/18/1926 | ||
| 30366 | Lstn-730 | OFSTIE | CLIFFORD | W | M | 15 | Fergus | 12/12/1925 | |
| 12161 | Bt 2385 | O'GARA | CHAS. | M | 51 | Silver Bow | 12/14/1922 | ||
| 36779 | Pow 223 | O'GARA | EUGENE | T | M | 56 | Powell | 5/9/1926 | |
| 49196 | SwG 369 | OGBIN | INF. OF LLOYD | F | -1 | Sweet Grass | 9/23/1928 | ||
| 20493 | Pk 243 | OGDEN | GERHART | M | 83 | Park | 12/3/1923 | ||
| 11603 | Br 100 | OGDEN | HENRY | M | M | 74 | Broadwater | 11/29/1922 | |
| 20483 | Pk 233 | OGDEN | INFANT | M | -1 | Park | 9/27/1923 | ||
| 55190 | Stw 563 | OGDEN | J.H. | M | 75 | Stillwater | 4/6/1929 | ||
| 18208 | DLCy 87 | OGDEN | JAMES | H | M | 89 | Powell | 10/7/1923 | |
| 23020 | Cbn 345 | OGDEN | MARY | F | 0 | Carbon | 10/23/1924 | ||
| 31936 | Stw-376 | OGDEN | MARY | M | F | 58 | Stillwater | 9/29/1925 | |
| 40138 | Fltd 1001 | OGDEN | ODELIA | F | 86 | Flathead | 11/2/1927 | ||
| 28812 | Fltd-698 | OGDEN | WESLEY | M | 84 | Flathead | 3/5/1925 | ||
| 19819 | Mc 117 | OGEN | MARTHA | F | 30 | McCone | 11/9/1923 | ||
| 14333 | Lstn 367 | OGG | INFANT | F | -1 | Fergus | 2/22/1922 | ||
| 14330 | Lstn 364 | OGG | INGA | M | F | 39 | Fergus | 2/25/1922 | |
| 25766 | Rav 555 | OGG | Wm. | H | M | 16 | Ravalli | 7/30/1924 | |
| 41268 | Kspl 928 | OGHGASIAN | SARKIS | M | 52 | Flathead | 6/15/1927 | ||
| 24370 | Hel 1153 | OGILVIE | WILLIAM | R | M | 59 | Lewis & Clark | 9/3/1924 | |
| 39192 | Bt 5337 | OGLE | BABY | F | -1 | Silver Bow | 8/29/1927 | ||
| 8559 | HI 124 | OGLE | CHARLES | L | M | 1 | Hill | 8/8/1921 | |
| 27642 | Bt-3750 | OGLE | ESTELLA | M | F | -1 | Silver Bow | 3/28/1925 | |
| 17134 | Bt 2515 | OGLE | MAUD | B | F | 41 | Silver Bow | 2/22/1923 | |
| 33616 | Bt 4852 | OGLE | WILLIAM | M | 47 | Silver Bow | 12/2/1926 | ||
| 41309 | Kspl 970 | OGLE | WILLIAM | T | M | 65 | Flathead | 9/22/1927 | |
| 33840 | Cbn 476 | OGLESBEE | CALVIN | C | M | 73 | Carbon | 12/19/1926 | |
| 12304 | Cbn 199 | OGLESBEE | EVA | A | F | 16 | Carbon | 4/8/1922 | |
| 12301 | Cbn 196 | OGLESBEE | FRANK | M | 0 | Carbon | 4/3/1922 | ||
| 1554 | Cbn 94 | OGLESBEE | VITORA | K | F | -1 | Carbon | 8/9/1920 | |
| 51411 | Dan 359 | OGLESBY | LEROY | J | M | 0 | Daniels | 12/12/1929 | |
| 44853 | Bt 6010 | O'GORMAN | THOMAS | M | 52 | Silver Bow | 8/31/1928 | ||
| 22130 | Blgs 1317 | O'GRADY | JOSEPH | M | M | 69 | Yellowstone | 10/24/1924 | |
| 14597 | MC 567 | OGREN | GLADY | T | F | -1 | Custer | 12/16/1922 | |
| 46685 | Hel 1770 | OGREN | JOSEPH | M | 59 | Lewis & Clark | 2/16/1928 | ||
| 7096 | Cas 211 | OGRIN | MRS JULIANA | F | 40 | Cascade | 9/1/1921 | ||
| 4628 | Pra 55 | O'HAIR | MYRTLE | A | F | -1 | Prairie | 8/28/1920 | |
| 24208 | Hav 491 | O'HANDLEY | CHESTER | K | M | -1 | Hill | 7/3/1924 | |
| 6604 | Bt 1456 | O'HARA | CHARLINE | F | 1 | Silver Bow | 3/24/1921 | ||
| 43708 | Ana 1412 | O'HARA | FRANCES | P | M | 19 | Deer Lodge | 7/21/1928 | |
| 6847 | Bt 1704 | O'HARA | FRANK | M | 60 | Silver Bow | 9/21/1921 | ||
| 53926 | MslaC 2575 | O'HARA | JAMES | H | M | 52 | Missoula | 6/23/1929 | |
| 10173 | RL 120 | O'HARA | JESSIE | F | 50 | Carbon | 1/4/1921 | ||
| 21701 | Ana 733 | O'HARA | JOHN | M | 56 | Deer Lodge | 4/30/1924 | ||
| 17852 | Cho 401 | O'HARA | MARGARET | F | 97 | Choteau | 12/15/1923 | ||
| 6821 | Bt 1678 | O'HARA | MARIE | F | 36 | Silver Bow | 9/1/1921 | ||
| 1021 | Bt 700 | O'HARA | MICHAEL | P | M | 44 | Silver Bow | 1/20/1920 | |
| 28763 | Fer-518 | O'HARA | MICHAEL | M | 75 | Fergus | 5/5/1925 | ||
| 7014 | Bvd 214 | O'HARA | PATRICK | G | M | 30 | Beaverhead | 8/12/1921 | |
| 18698 | GF 1579 | O'HARA | PATRICK | J | M | 58 | Cascade | 11/9/1923 | |
| 52571 | Hav 1024 | OHARE | ROBERT | C | M | -1 | Hill | 10/19/1929 | |
| 54346 | Rav 1001 | O'HARE | PETER | M | 81 | Ravalli | 3/4/1929 | ||
| 50617 | Bt 6582 | O'HEARN | JAMES | F | M | 32 | Silver Bow | 5/13/1929 | |
| 33445 | Bt 4680 | O'HERN | ANNIE | F | 79 | Silver Bow | 9/8/1926 | ||
| 6149 | Bl 252 | OHLERKING | GEORGE | M | 21 | Blaine | 12/21/1921 | ||
| 46117 | GF 3127 | OHLEY | FRED | M | 81 | Cascade | 6/29/1928 | ||
| 15206 | Pon 156 | OHLGREN | FRANK | M | 61 | Pondera | 3/11/1922 | ||
| 40025 | DLCy 256 | OHM | WILLIAM | M | 54 | Powell | 7/26/1927 | ||
| 52581 | Hav 1034 | OHMAN | AGNES | C | F | 43 | Hill | 11/14/1929 | |
| 20417 | Phil 210 | OHMAN | JOHN | M | 70 | Phillips | 5/21/1923 | ||
| 23550 | Fltd 872 | OHMOTO | TUSHIYA | F | -1 | Flathead | 10/15/1924 | ||
| 42365 | Pk 360 | OHTA | M | M | 39 | Park | 6/15/1927 | ||
| 42696 | Ri 533 | OIAN | JAMES | M | M | 8 | Richland | 4/1/1927 | |
| 34835 | GF 2466 | OIEN | OLE | P | M | 43 | Cascade | 8/26/1926 | |
| 12248 | Cas 246 | OIEZ | SYLVESTER | M | 57 | Cascade | 3/30/1922 | ||
| 29327 | Gla-521 | OIKLE | CHESTER | M | M | 2 | Glacier | 9/5/1925 | |
| 35499 | Kspl 768 | OIKLE | MARY | M | F | 54 | Flathead | 2/24/1926 | |
| 23990 | Gla 384 | OIKLE | NATHANIEL | M | 59 | Glacier | 6/10/1924 | ||
| 16069 | Tl 97 | OILUND | ANDREW | O | M | 45 | Toole | 12/13/1922 | |
| 41329 | Kspl 991 | OISTOD | HANS | M | 38 | Flathead | 11/22/1927 | ||
| 23198 | DL 1023 | OJA | ANDREW | K | M | 59 | Deer Lodge | 3/29/1924 | |
| 42769 | RL 421 | OJANICH | JOSEPH | M | 62 | Carbon | 4/29/1927 | ||
| 24187 | Hav 471 | OKADA | YOSHIKO | F | 38 | Hill | 4/2/1924 | ||
| 8343 | Hav 244 | O'KADA | EDDY | M | -1 | Hill | 7/5/1921 | ||
| 40608 | GF 2901 | O'KAE | J | M | M | 44 | Cascade | 12/7/1927 | |
| 11129 | BH 325 | OKAYAMA | T. | 11 | Big Horn | 5/11/1922 | |||
| 14940 | MslaC 862 | O'KEEFE | DAVID | M | 86 | Missoula | 8/23/1922 | ||
| 34326 | DLCy 200 | O'KEEFE | EDWARD | M | 60 | Powell | 7/3/1926 | ||
| 32316 | Ana 1011 | O'KEEFE | JOHN | M | 73 | Deer Lodge | 4/14/1926 | ||
| 22338 | Bt 3038 | O'KEEFE | MARY | F | 16 | Silver Bow | 1/29/1924 | ||
| 20980 | SB 1020 | O'KEEFE | MICHAEL | J | M | 24 | Silver Bow | 1/11/1923 | |
| 28118 | Bt-4224 | O'KEEFE | ROSE | M | F | -1 | Silver Bow | 12/30/1925 | |
| 7992 | GF 889 | OKERMAN | AUGUST | M | 71 | Cascade | 7/24/1921 | ||
| 54080 | Musl 884 | OKICIC | NIKOLA | M | 58 | Musselshell | 7/6/1929 | ||
| 40477 | GF 2769 | OKRUSCH | GEORGE | M | 11 | Cascade | 6/26/1927 | ||
| 36823 | Pra 210 | OLAF | JONAS | M | 73 | Prairie | 11/15/1926 | ||
| 4357 | Musl 207 | OLALI | WILLIAM | M | -1 | Musselshell | 8/2/1920 | ||
| 47850 | MslaC 2190 | OLAND | CHARLES | M | 68 | Missoula | 2/2/1928 | ||
| 53205 | LC 659 | OLANDER | EMANUEL | M | 83 | Lewis & Clark | 2/7/1929 | ||
| 29592 | Hel-1250 | OLANDER | GUSTAVA | F | 78 | Lewis & Clark | 3/13/1925 | ||
| 3565 | Lstn 117 | OLARSCH | ROSA | F | -1 | Fergus | 2/21/1920 | ||
| 42404 | Pon 429 | O'LAUGHLIN | JAMES | M | 45 | Pondera | 5/5/1927 | ||
| 6057 | BH 287 | OLD | ALLIGATOR | M | 76 | Big Horn | 12/1/1921 | ||
| 6078 | BH 346 | OLD | ALLIGATOR | M | 76 | Big Horn | 12/1/1921 | ||
| 52587 | Hav 1040 | OLD | ORTON | M | 45 | Hill | 12/9/1929 | ||
| 11186 | BH 392 | OLD | F | 80 | Big Horn | 1/13/1922 | |||
| 6014 | BH 235 | OLD BEAR | LULU | F | 6 | Big Horn | 3/11/1921 | ||
| 26985 | BH-659 | OLD BEAR | MARY | F | 3 | Big Horn | 5/29/1925 | ||
| 21831 | BH 564 | OLD BEAR | NED | M | 37 | Big Horn | 3/28/1924 | ||
| 26958 | BH-630 | OLD BEAR | WARREN | M | -1 | Big Horn | 1/29/1925 | ||
| 6022 | BH 243 | OLD BEAR WOMAN | F | 90 | Big Horn | 4/22/1921 | |||
| 16570 | BH 493 | OLD BULL | ALEXANDER | M | 1 | Big Horn | 9/14/1923 | ||
| 43861 | BH 967 | OLD BULL | CAROLINE | F | 5 | Big Horn | 6/13/1928 | ||
| 21855 | BH 589 | OLD BULL | DAN | M | 44 | Big Horn | 7/9/1924 | ||
| 16551 | BH 472 | OLD BULL | EDNA | F | 1 | Big Horn | 6/12/1923 | age unknown | |
| 198 | BH 200 | OLD BULL | MARY | F | -1 | Big Horn | 3/15/1920 | ||
| 20779 | Rbd 391 | OLD BULL | MARY | F | 12 | Rosebud | 11/29/1923 | ||
| 4787 | Rbd 197A | OLD BULL | ROSIE | F | 12 | Rosebud | 6/7/1920 | Same as Rbd 197? | |
| 4786 | Rbd 197 | OLD BULL | ROSIE | F | 12 | Rosebud | 6/6/1920 | ||
| 36961 | Rbd 580 | OLD BULL | ROSS | M | 10 | Rosebud | 5/25/1926 | ||
| 4789 | Rbd 199 | OLD BULL | SUSIE | F | 13 | Rosebud | 7/7/1920 | ||
| 24031 | Gla 445 | OLD CHIEF | ANNIE | F | 14 | Glacier | 12/22/1924 | ||
| 2661 | Gla 117 | OLD CHIEF | BABY | F | -14 | Glacier | 6/23/1920 | ||
| 34960 | Gla 550 | OLD CHIEF | MARY | F | -1 | Glacier | 2/11/1926 | ||
| 35005 | Gla 602 | OLD CHIEF | MARY | F | 1 | Glacier | 2/11/1926 | ||
| 23969 | Gla 364 | OLD CHIEF | MIKE | M | 74 | Glacier | 3/8/1924 | ||
| 34992 | Gla 586 | OLD COYOTE | M | 60 | Glacier | 6/14/1926 | |||
| 26967 | BH-641 | OLD CRANE | PEARL | F | 4 | Big Horn | 1/10/1925 | ||
| 43817 | BH 918 | OLD CRANE | ROY | M | 22 | Big Horn | 1/13/1928 | ||
| 43822 | BH 925 | OLD CRANE | ROY | M | 21 | Big Horn | 1/31/1928 | ||
| 19233 | Hl 208 | OLD CROW WOMAN | (none) | F | 85 | Hill | 5/6/1923 | ||
| 11165 | BH 364 | OLD DWARF | ALFRED | M | -1 | Big Horn | 6/14/1922 | ||
| 134 | BH 115 | OLD DWARF | ANDREW | M | -1 | Big Horn | 1/2/1920 | ||
| 225 | BH 78 1/2 | OLD DWARF | INFANT | M | -1 | Big Horn | 1/2/1920 | ||
| 11160 | BH 359 | OLD DWARF | MARY | F | -1 | Big Horn | 5/14/1922 | ||
| 21838 | BH 571 | OLD ELK | (none) | M | 56 | Big Horn | 5/11/1924 | ||
| 6020 | BH 241 | OLD ELK | ANNA | MARIE | F | 3 | Big Horn | 4/7/1921 | |
| 38296 | BH 894 | OLD HORN | ALICE | F | -1 | Big Horn | 8/30/1927 | ||
| 204 | BH 207 | OLD HORN | CLARENCE | M | 20 | Big Horn | 7/9/1920 | ||
| 21817 | BH 549 | OLD HORN | JETTIE | F | 2 | Big Horn | 3/1/1924 | ||
| 38281 | BH 877 | OLD HORN | LUCY | F | 53 | Big Horn | 8/10/1927 | ||
| 38293 | BH 891 | OLD HORN | LUCY | F | 53 | Big Horn | 8/10/1927 | ||
| 27036 | BH-710 | OLD HORN | MARIE | F | -1 | Big Horn | 11/16/1925 | ||
| 32541 | BH 805 | OLD HORN | PAUL | H | M | 1 | Big Horn | 12/12/1926 | |
| 38286 | BH 884 | OLD HORN | SUSIE | F | -1 | Big Horn | 6/16/1927 | ||
| 3186 | Hl 135 | OLD LADY MOON | F | 2 | Hill | 4/9/1920 | |||
| 46346 | Gla 755 | OLD MAN CHIEF | (none) | M | -1 | Glacier | 5/6/1928 | ||
| 46341 | Gla 750 | OLD PARSON | LOUISE | F | 11 | Glacier | 3/21/1928 | ||
| 40664 | Gla 653 | OLD PERSON | ANNIE | F | 1 | Glacier | 3/8/1927 | ||
| 15234 | Pon 185 | OLD ROCK | ALICE | F | -1 | Pondera | 10/9/1922 | ||
| 20889 | Roos 307 | OLD ROCK | CAROLINE | F | 2 | Roosevelt | 3/14/1923 | ||
| 42385 | Pon 408 | OLD ROCK | FRANK | M | 7 | Pondera | 1/9/1927 | ||
| 20532 | Pon 234 | OLD ROCK | INFANT | F | -1 | Pondera | 8/30/1923 | ||
| 43874 | BH 982 | OLD TAIL | DOROTHY | F | 22 | Big Horn | 8/1/1928 | ||
| 32600 | Bl 622 | OLD WOMAN DAY | F | 89 | Blaine | 5/16/1926 | |||
| 8119 | Gla 171 | OLD WOOD | JOE | M | 19 | Glacier | 2/28/1921 | aka Looking For Smoke | |
| 25724 | Rav 512 | OLDEN | CHARLES | M | M | 64 | Ravalli | 1/27/1924 | |
| 54106 | Musl 911 | OLDEN | PAUL | L | M | -1 | Musselshell | 12/17/1929 | |
| 45909 | Gal 629 | OLDENBURGER | HENRY | M | 61 | Gallatin | 12/13/1928 | ||
| 45858 | Gal 577 | OLDENBURGER | IRENE | F | 2 | Gallatin | 3/21/1928 | ||
| 38539 | Blgs 1926 | OLDER | EDWARD | P | M | 67 | Yellowstone | 7/8/1927 | |
| 25715 | Pra 168 | OLDER | INEZ | F | 58 | Prairie | 9/7/1924 | ||
| 36349 | MslaC 1708 | OLDHABER | NICK | M | 60 | Missoula | 3/16/1926 | ||
| 11002 | Ana 428 | OLDHANBER | CATHERAN | F | 63 | Deer Lodge | 3/10/1922 | ||
| 14476 | Mad 224 | OLDS | CAROLINE | E | F | 90 | Madison | 8/19/1922 | |
| 12014 | Bt 2237 | OLDS | HONOR | F | 59 | Silver Bow | 9/14/1922 | ||
| 41349 | La 304 | OLDS | MYRTLE | E | F | 28 | Lake | 2/20/1927 | |
| 50654 | Bt 6619 | OLDS | ORSON | N | M | 56 | Silver Bow | 5/25/1929 | |
| 53214 | LC 668 | OLDS | ROHECIA | B | F | 76 | Lewis & Clark | 2/23/1929 | |
| 741 | Bt 1077 | O'LEARY | AGNES | F | 9 | Silver Bow | 8/10/1920 | ||
| 16042 | SwG 135 | O'LEARY | ALICE | M | F | 78 | Sweet Grass | 8/31/1922 | |
| 27435 | Boz-595 | O'LEARY | CATHERINE | F | 61 | Gallatin | 8/1/1925 | ||
| 10483 | SB 750 | O'LEARY | CORNELIUS | M | 55 | Silver Bow | 11/5/1921 | ||
| 28 | Ana 182 | O'LEARY | DANIEL | M | 32 | Deer Lodge | 2/14/1920 | ||
| 4272 | MslaC 441 | O'LEARY | DANIEL | M | 57 | Missoula | 12/22/1920 | ||
| 21184 | SB 1224 | O'LEARY | DANIEL | M | 25 | Silver Bow | 10/20/1923 | ||
| 34184 | DL 1398 | O'LEARY | DENNIS | M | 43 | Deer Lodge | 4/22/1926 | ||
| 41661 | Lstn 873 | O'LEARY | ELMYRA | L | F | 54 | Fergus | 2/14/1927 | |
| 38145 | Ana 1240 | O'LEARY | GENEVIEVE | A | F | 8 | Deer Lodge | 7/30/1927 | |
| 50351 | Bt 6315 | O'LEARY | INF OF HENRY | M | 0 | Silver Bow | 1/12/1929 | INF OF | |
| 30257 | Liv-555 | O'LEARY | JAMES | M | 36 | Park | 9/22/1925 | ||
| 15895 | SB 968 | O'LEARY | JAS. | M | 53 | Silver Bow | 10/31/1922 | ||
| 929 | Bt 1265 | O'LEARY | JOHN | J | M | 18 | Silver Bow | 12/7/1920 | |
| 5504 | SwG 51 | O'LEARY | JOHN | C | M | 87 | Sweet Grass | 6/5/1920 | |
| 22484 | Bt 3191 | O'LEARY | JOHN | T | M | -1 | Silver Bow | 4/30/1924 | |
| 33184 | Bt 4423 | O'LEARY | JOHN | J | M | 48 | Silver Bow | 3/26/1926 | |
| 43264 | SwG 302 | O'LEARY | JOHN | K | M | -1 | Sweet Grass | 1/18/1927 | |
| 15608 | Roos 257 | O'LEARY | MARY | F | 73 | Roosevelt | 7/8/1922 | ||
| 15910 | SB 984 | O'LEARY | THOS. | M | 64 | Silver Bow | 11/17/1922 | ||
| 36053 | Mad 436 | O'LEARY | VIRGINIA | A | F | 63 | Madison | 7/22/1926 | |
| 16438 | Ana 630 | O'LEARY | WILLIAM | R | M | 1 | Deer Lodge | 8/10/1923 | |
| 13890 | Hl 183 | OLEASON | MARTIN | M | 43 | Hill | 10/6/1922 | ||
| 26990 | BH-664 | OLENIK | TONY | M | -1 | Big Horn | 6/5/1925 | ||
| 49868 | Bl 890 | OLERKING | FRANK | F | 0 | Blaine | 6/10/1929 | ||
| 49869 | Bl 891 | OLERKING | FRANK | M | 0 | Blaine | 6/10/1929 | ||
| 20840 | Ri 330 | OLESEN | EDWIN | G | M | -1 | Richland | 4/16/1923 | |
| 25904 | Ri 330 | OLESEN | EDWIN | G | M | -1 | Richland | 4/16/1924 | |
| 55182 | Stw 555 | OLESON | BEBE | F | -1 | Stillwater | 2/25/1929 | ||
| 23193 | DL 1018 | OLESON | CHARLES | M | 62 | Deer Lodge | 3/23/1924 | ||
| 29727 | Hl-256 | OLESON | EDITH | F | -1 | Hill | 2/6/1925 | ||
| 37422 | SB 1910 | OLESON | OLAF | V | M | 64 | Silver Bow | 7/15/1926 | |
| 17394 | Bt 2778 | OLESON | PETER | M | 69 | Silver Bow | 8/7/1923 | ||
| 49447 | Wh 375 | OLESON | Wm. | H | M | 54 | Wheatland | 10/17/1928 | |
| 40345 | GF 2635 | OLEYAR | MIKE | M | 34 | Cascade | 2/24/1927 | ||
| 34788 | GF 2419 | OLEYAR | SUSAN | F | 29 | Cascade | 6/22/1926 | ||
| 1494 | Cas 94 | OLEYER | HELEN | F | -1 | Cascade | 3/17/1920 | ||
| 41489 | LC 542 | OLGARD | HARRY | S | M | 39 | Lewis & Clark | 9/1/1927 | |
| 34643 | GF 2273 | OLGARDT | BETTY | F | -1 | Cascade | 1/24/1926 | ||
| 42069 | MslaC 2008 | OLICH | CARRIE | D | F | 62 | Missoula | 4/20/1927 | |
| 15843 | SB 916 | OLIEN | AMIEL | M | 32 | Silver Bow | 7/18/1922 | ||
| 43317 | Tl 268 | OLIN | HENRY | M | 70 | Toole | 4/11/1927 | ||
| 14157 | Lib 44 | OLIN | PETE | M | 68 | Liberty | 12/23/1922 | ||
| 50911 | Bt 6878 | OLING | GEO. | M | 28 | Silver Bow | 10/6/1929 | ||
| 45722 | Fal 259 | OLINGER | CLARA | M | F | 35 | Fallon | 5/25/1928 | |
| 45994 | GF 2998 | OLINGER | GEO. | C | M | 63 | Cascade | 2/25/1928 | |
| 18779 | Gla 325 | OLINGER | INFANT | M | 0 | Glacier | 7/22/1923 | ||
| 51756 | Fal 312 | OLINGER | MADELINE | S | F | 28 | Fallon | 11/29/1929 | |
| 42164 | MslaC 2105 | OLIPHANT | BABY | F | -1 | Missoula | 9/23/1927 | ||
| 10808 | Val 266 | OLIPIANT | CHAS | M | 51 | Valley | 12/16/1921 | ||
| 48851 | SB 2326 | OLIVER | AMELIA | F | 57 | Silver Bow | 3/12/1928 | ||
| 49623 | Ana 1565 | OLIVER | ANNA | M | F | 44 | Deer Lodge | 5/3/1929 | |
| 5486 | Stw 96 | OLIVER | CLARA | L | F | 46 | Stillwater | 4/27/1920 | |
| 55187 | Stw 560 | OLIVER | ELIJAH | F | M | 80 | Stillwater | 3/30/1929 | |
| 17694 | Cas 342 | OLIVER | ELIZABETH Mrs | A | F | 71 | Cascade | 9/3/1923 | |
| 39867 | DL 1580 | OLIVER | FREDERICHA | F | 51 | Deer Lodge | 5/13/1927 | ||
| 51574 | DL2003 | OLIVER | GEO. | M | 35 | Deer Lodge | 5/31/1929 | ||
| 44854 | Bt 6011 | OLIVER | JACOB | M | 63 | Silver Bow | 8/31/1928 | ||
| 17692 | Cas 340 | OLIVER | JAMES | M | 66 | Cascade | 8/28/1923 | ||
| 51439 | Dil 353 | OLIVER | JESSIE | L | F | 43 | Beaverhead | 3/28/1929 | |
| 47933 | MslaC 2274 | OLIVER | JO ANN | F | -1 | Missoula | 6/7/1928 | ||
| 25532 | Musl 528 | OLIVER | LETTIE | M | F | 49 | Musselshell | 5/25/1924 | |
| 25552 | Musl 548 | OLIVER | MARIE | F | F | 47 | Musselshell | 10/24/1924 | |
| 7080 | Cas 194 | OLIVER | MRS ELIZABETH | F | 78 | Cascade | 4/19/1921 | ||
| 29037 | GF-2029 | OLIVER | RALPH | M | 46 | Cascade | 3/24/1925 | ||
| 41007 | Hel 1638 | OLIVER | ROBERT | M | -1 | Lewis & Clark | 4/27/1927 | ||
| 17751 | Cbn 285 | OLIVER | STELLA | F | 55 | Carbon | 7/18/1923 | ||
| 12165 | Bt 2389 | OLIVER | SUSAN | F | 96 | Silver Bow | 12/16/1922 | ||
| 21115 | SB 1155 | OLIVER | THOMAS | H | M | 61 | Silver Bow | 6/3/1923 | |
| 43223 | Stw 457 | OLIVER | THOMAS | E | M | 50 | Stillwater | 2/21/1927 | |
| 11428 | Blgs 844 | OLIVER | WILBUR | B | M | 2 | Yellowstone | 8/10/1922 | |
| 20985 | SB 1025 | OLIVER | WILLIAM | J | M | 27 | Silver Bow | 1/15/1923 | |
| 34293 | DL 1505 | OLIVER, JR | JOHN | M | 15 | Deer Lodge | 12/19/1926 | ||
| 37634 | Stw 419 | OLIVER, JR | MATA | F | 69 | Stillwater | 5/20/1926 | ||
| 34078 | Dil 208 | OLIVER, JR | WASON | M | M | 84 | Beaverhead | 6/23/1926 | |
| 20308 | Musl 414 | OLIVERI | JOHN | M | 44 | Musselshell | 1/22/1923 | ||
| 33208 | Bt 4447 | OLIVERO | ROSE | P | F | 20 | Silver Bow | 4/7/1926 | |
| 12356 | Cho 268 | OLLINGER | OSCAR | M | 81 | Choteau | 2/21/1922 | ||
| 7617 | Fltd 343 | OLMSTEAD | BABY | M | -1 | Flathead | 1/28/1921 | ||
| 38457 | Blgs 1844 | OLMSTEAD | CALLIE | F | 64 | Yellowstone | 3/10/1927 | ||
| 21394 | Tl 126 | OLMSTEAD | INFANT | M | 0 | Toole | 8/6/1923 | ||
| 17498 | Bt 2882 | OLMSTEAD | LOUISA Mrs | F | 71 | Silver Bow | 10/18/1923 | ||
| 55459 | Wfsh 65 | OLMSTEAD | ROBERT | A | M | 0 | Flathead | 12/9/1929 | |
| 51468 | Dil 382 | OLMSTEAD | THOMAS | D | M | 59 | Beaverhead | 11/9/1929 | |
| 45711 | DLCy 318 | OLNEY | FRANK | M | 62 | Deer Lodge | 12/23/1928 | ||
| 32240 | Yel-624 | OLOFSON | BERTHA | F | 76 | Yellowstone | 4/17/1925 | ||
| 21404 | Tl 138 | O'LOUGHLIN | PAUL | M | 0 | Toole | 11/4/1923 | ||
| 24382 | Hel 1165 | OLSELLO | WILLIE | M | 0 | Lewis & Clark | 9/25/1924 | ||
| 5615 | Val 126 | OLSEN | ADOLPH | C | M | 29 | Valley | 2/11/1920 | |
| 30177 | Lin-399 | OLSEN | ALBERT | O | M | 11 | Lincoln | 11/8/1925 | |
| 32192 | Wh-311 | OLSEN | ANDREW | W | M | 70 | Wheatland | 12/26/1925 | |
| 4268 | MslaC 437 | OLSEN | BABY | M | 0 | Missoula | 12/16/1920 | ||
| 22736 | Bt 3456 | OLSEN | BABY | M | 0 | Silver Bow | 10/15/1924 | ||
| 27629 | Bt-3737 | OLSEN | CHARLES | M | 55 | Silver Bow | 3/21/1925 | ||
| 50708 | Bt 6673 | OLSEN | CHARLES | T | M | 50 | Silver Bow | 6/12/1929 | |
| 15600 | Roos 249 | OLSEN | EARL | A | M | -1 | Roosevelt | 3/30/1922 | |
| 22131 | Blgs 1318 | OLSEN | ETHEL | C | F | -1 | Yellowstone | 10/25/1924 | |
| 24217 | Hav 500 | OLSEN | GLORIA MAY | F | -1 | Hill | 9/3/1924 | ||
| 50165 | Blgs 2585 | OLSEN | HANS | C | M | 57 | Yellowstone | 12/3/1929 | |
| 51448 | Dil 362 | OLSEN | INF. | M | -1 | Beaverhead | 5/29/1929 | ||
| 10243 | Roos 213 | OLSEN | INFANT | F | -1 | Roosevelt | 6/4/1921 | ||
| 35825 | Liv 591 | OLSEN | INFANT | F | 0 | Park | 2/19/1926 | ||
| 4605 | PR 13 | OLSEN | IVER | M | 64 | Powder River | 12/4/1920 | ||
| 914 | Bt 1250 | OLSEN | JACOB | M | 82 | Silver Bow | 11/24/1920 | ||
| 52769 | Hel 2072 | OLSEN | MARJORIE | H | F | 38 | Lewis & Clark | 7/2/1929 | |
| 25330 | MslaC 1255 | OLSEN | MARTIN | M | 65 | Missoula | 3/20/1924 | ||
| 5033 | Roos 75 | OLSEN | NELS | C | M | 27 | Roosevelt | 2/29/1920 | |
| 31832 | SB-1774 | OLSEN | NINA | B | F | 64 | Silver Bow | 12/8/1925 | |
| 23201 | DL 1026 | OLSEN | NORRIS | M | 38 | Deer Lodge | 4/4/1924 | ||
| 7040 | Car 29 | OLSEN | O | H | M | 60 | Carter | 2/7/1921 | |
| 8477 | Hel 547 | OLSEN | OLIVER | M | 79 | Lewis & Clark | 8/25/1921 | ||
| 45121 | Bt 6279 | OLSEN | OSCAR | G | M | 42 | Silver Bow | 12/30/1928 | |
| 30120 | Lib-73 | OLSEN | ROBERT | H | M | -1 | Liberty | 4/21/1925 | |
| 18350 | Fltd 615.5 | OLSEN | SAMUEL | M | 1 | Flathead | 6/19/1923 | no age given | |
| 34418 | Fer 594 | OLSEN | SOPHUS | H | M | 82 | Fergus | 6/25/1926 | |
| 32011 | Tl-178 | OLSEN | SVEN | M | 91 | Toole | 5/24/1925 | ||
| 55464 | Wh 388 | OLSEN | WM. | R | M | -1 | Wheatland | 2/17/1929 | |
| 23615 | Gar 126 | OLSGARD | THOS. | E | M | 71 | Garfield | 7/9/1924 | |
| 20498 | Pon 200 | OLSON | (none) | M | 0 | Pondera | 1/8/1923 | ||
| 34347 | DLCy 221 | OLSON | AGNES | F | 67 | Powell | 12/30/1926 | ||
| 2897 | Hav 139 | OLSON | ALBERT | G | M | 68 | Hill | 4/12/1920 | |
| 38105 | Ana 1200 | OLSON | ALBERT | A | M | -1 | Deer Lodge | 5/20/1927 | |
| 5391 | Sdn 127 | OLSON | ANDREW | G | M | 82 | Sheridan | 6/16/1920 | |
| 15987 | Stw 216 | OLSON | ANDREW | M | 70 | Stillwater | 5/30/1922 | ||
| 42141 | MslaC 2081 | OLSON | ANNA | F | 40 | Missoula | 8/17/1927 | ||
| 51414 | Daw 275 | OLSON | ANNA | T | F | 69 | Dawson | 1/5/1929 | |
| 53754 | Msla 728 | OLSON | ANNA | F | 79 | Missoula | 4/12/1929 | ||
| 38605 | Blgs 1993 | OLSON | ANNIE | F | 42 | Yellowstone | 10/28/1927 | ||
| 21459 | Val 342 | OLSON | ARTHUR | M | -1 | Valley | 3/17/1923 | ||
| 51235 | Cbn 643 | OLSON | ARTHUR | M | 0 | Carbon | 2/6/1929 | ||
| 46694 | Hel 1780 | OLSON | AUGUST | M | 76 | Lewis & Clark | 2/25/1928 | ||
| 12553 | DL 573 | OLSON | AUGUSTA | F | 47 | Deer Lodge | 3/3/1922 | ||
| 3012 | Hel 277 | OLSON | BABY | 0 | Lewis & Clark | 5/27/1920 | |||
| 5682 | Val 192 | OLSON | BABY | F | -1 | Valley | 12/26/1920 | ||
| 8087 | GF 983 | OLSON | BARNEY | EUGENE | M | -1 | Cascade | 12/7/1921 | |
| 29756 | Hl-418 | OLSON | BERTHA | M | F | 56 | Hill | 11/30/1925 | |
| 55169 | Sdn 676 | OLSON | BEVERLY | G | F | 2 | Sheridan | 12/6/1929 | |
| 35804 | Lin 458 | OLSON | CARL | M | 38 | Lincoln | 12/15/1926 | ||
| 25230 | Min 92 | OLSON | CHARLES | M | 66 | Mineral | 3/27/1924 | ||
| 36426 | MslaC 1784 | OLSON | CHARLES | M | 68 | Missoula | 6/29/1926 | ||
| 52333 | GF 3706 | OLSON | CHARLES | M | 54 | Cascade | 12/12/1929 | ||
| 53872 | MslaC 2521 | OLSON | CHARLES | M | 45 | Missoula | 4/29/1929 | ||
| 3142 | Hel 407 | OLSON | CHRIST | M | 47 | Lewis & Clark | 11/24/1920 | ||
| 54172 | Phil 558 | OLSON | CHRISTIAN | S | M | 19 | Phillips | 11/12/1929 | |
| 36466 | MslaC 1824 | OLSON | CLARA | F | 48 | Missoula | 9/2/1926 | ||
| 47651 | MC 1153 | OLSON | CLARIECE | L | M | -1 | Custer | 6/19/1928 | |
| 26640 | Val 463 | OLSON | CLIFFORD | M | -1 | Valley | 8/9/1924 | ||
| 29589 | Hel-1247 | OLSON | CORA | I | M | 52 | Lewis & Clark | 3/12/1925 | |
| 8475 | Hel 537 | OLSON | DANIEL | M | 78 | Lewis & Clark | 7/30/1921 | ||
| 34476 | Fltd 780 | OLSON | DAVID | M | 60 | Flathead | 4/22/1926 | ||
| 51204 | Cas 751 | OLSON | DAVID | W | M | 20 | Cascade | 8/21/1929 | |
| 28084 | Bt-4190 | OLSON | DELORIS | F | -1 | Silver Bow | 12/15/1925 | ||
| 28085 | Bt-4191 | OLSON | EDNA | F | 30 | Silver Bow | 12/15/1925 | ||
| 25374 | MslaC 1300 | OLSON | EDWIN | M | 36 | Missoula | 5/22/1924 | ||
| 30069 | LC-414 | OLSON | ELIZABETH | F | 65 | Lewis & Clark | 5/19/1925 | ||
| 5640 | Val 151 | OLSON | ELLA | T | F | 28 | Valley | 6/15/1920 | |
| 24776 | LC 352 | OLSON | ELMER | G | M | 27 | Lewis & Clark | 9/5/1924 | |
| 7295 | Daw 51 | OLSON | ELNA | F | 84 | Dawson | 4/1/1921 | ||
| 49875 | Bl 897 | OLSON | ELSIE | F | 8 | Blaine | 7/15/1929 | ||
| 7852 | GF 744 | OLSON | ELVIN | M | 23 | Cascade | 1/31/1921 | ||
| 25346 | MslaC 1271 | OLSON | ERNEST | M | 36 | Missoula | 4/13/1924 | ||
| 48215 | Phil 500 | OLSON | EVA MAE | F | 34 | Phillips | 12/17/1928 | ||
| 24099 | Gld 391 | OLSON | EVEN | M | 62 | Dawson | 10/9/1924 | ||
| 35427 | JB 122 | OLSON | FLAVILLE | C | F | 34 | Judith Basin | 3/1/1926 | |
| 50147 | Blgs 2567 | OLSON | FLORA | DM | F | 6 | Yellowstone | 11/8/1929 | |
| 1915 | Fer 145 | OLSON | FLORENCE | F | 1 | Fergus | 4/10/1920 | ||
| 37136 | Roos 552 | OLSON | FLORENCE | A | F | 7 | Roosevelt | 2/10/1926 | |
| 15287 | Pra 118 | OLSON | GEO. | O | M | 48 | Prairie | 10/25/1922 | |
| 52278 | GF 3649 | OLSON | GEO. | M | 39 | Cascade | 10/23/1929 | ||
| 22814 | Bt 3537 | OLSON | GEORGE | S | M | -1 | Silver Bow | 12/1/1924 | |
| 32363 | Ana 1057 | OLSON | GUST | M | 50 | Deer Lodge | 7/11/1926 | ||
| 49696 | Ana 1636 | OLSON | HANS | M | 60 | Deer Lodge | 9/7/1929 | ||
| 32778 | Blgs 1700 | OLSON | HAROLD | R | M | 15 | Yellowstone | 6/23/1926 | |
| 15611 | Roos 260 | OLSON | HARRY | M | 5 | Roosevelt | 7/20/1922 | ||
| 6941 | Bt 1798 | OLSON | HARVY | M | 61 | Silver Bow | 12/5/1921 | ||
| 43483 | Wfsh 6 | OLSON | HELEN | M | F | 46 | Flathead | 6/4/1927 | |
| 37165 | Roos 609 | OLSON | HELENA | F | 78 | Roosevelt | 5/4/1926 | ||
| 45530 | DL 1774 | OLSON | HENRY | A | M | 48 | Deer Lodge | 5/6/1928 | |
| 48690 | Roos 815 | OLSON | HENRY | N | M, | -1 | Roosevelt | 6/5/1928 | |
| 29165 | GF-2158 | OLSON | HERMAN | M | 59 | Cascade | 8/16/1925 | ||
| 55327 | Tn 453 | OLSON | INF OF ADOLPH | M | -1 | Teton | 6/11/1929 | INF OF | |
| 53777 | Msla 751 | OLSON | INF OF ROY | F | 0 | Missoula | 8/28/1929 | INF OF | |
| 46098 | GF 3108 | OLSON | INF. OF ADOLPH | M | -1 | Cascade | 6/12/1928 | ||
| 49337 | Val 757 | OLSON | INF. OF HENRY | M | 0 | Valley | 5/29/1928 | ||
| 48193 | Phil 478 | OLSON | INF. OF JOHN | M | -1 | Phillips | 9/9/1928 | ||
| 359 | Blgs 302 | OLSON | INFANT | M | 0 | Yellowstone | 3/2/1920 | ||
| 21350 | SwG 163 | OLSON | INFANT | M | -1 | Sweet Grass | 7/1/1923 | ||
| 42421 | Pon 446 | OLSON | INGEBERG | F | 89 | Pondera | 6/22/1927 | ||
| 49973 | Blgs 2392 | OLSON | IRENE | F | 0 | Yellowstone | 3/25/1929 | ||
| 43280 | SwG 318 | OLSON | IRMA | M | F | -1 | Sweet Grass | 5/7/1927 | |
| 42338 | Phil 433 | OLSON | IVA | F | -1 | Phillips | 11/14/1927 | ||
| 40909 | Hav 765 | OLSON | JAMES | M | 53 | Hill | 9/5/1927 | ||
| 498 | Blgs 441 | OLSON | JOHN | W | M | 20 | Yellowstone | 10/17/1920 | |
| 5625 | Val 137 | OLSON | JOHN | M | 46 | Valley | 4/1/1920 | ||
| 6304 | Blgs 649 | OLSON | JOHN | WALFORD | M | 22 | Yellowstone | 8/30/1921 | |
| 9316 | Msla 248 | OLSON | JOHN | HENRY | M | 72 | Missoula | 5/5/1921 | |
| 12002 | Bt 2223 | OLSON | JOHN | M | 72 | Silver Bow | 9/7/1922 | ||
| 18539 | GF 1420 | OLSON | JOHN | M | 5 | Cascade | 4/9/1923 | ||
| 28660 | DL-1328 | OLSON | JOHN | S | M | 50 | Deer Lodge | 12/31/1925 | |
| 30858 | MslaC-1655 | OLSON | JOHN | P | M | 58 | Missoula | 12/26/1925 | |
| 35082 | Gra 280 | OLSON | JOHN | D | M | 67 | Granite | 12/29/1926 | |
| 38889 | Bt 5025 | OLSON | JOHN | M | 45 | Silver Bow | 2/23/1927 | ||
| 40785 | Gld 551 | OLSON | JOHN | E | M | 34 | Dawson | 9/23/1927 | |
| 43344 | Tl 295 | OLSON | JOHN | P | M | 43 | Toole | 10/14/1927 | |
| 5025 | Roos 67 | OLSON | JOSEPH | M | 4 | Roosevelt | 2/26/1920 | ||
| 15504 | Ri 219 | OLSON | JOSEPHINE | F | 48 | Richland | 6/22/1922 | ||
| 4596 | Pow 94 | OLSON | JULIA | F | 4 | Powell | 9/25/1920 | ||
| 16433 | Ana 625 | OLSON | JULIA | F | 25 | Deer Lodge | 7/15/1923 | ||
| 15160 | Pk 164 | OLSON | KARIN | F | 77 | Park | 3/18/1922 | ||
| 53949 | MslaC 2598 | OLSON | LAWRENCE | M | 0 | Missoula | 8/12/1929 | ||
| 32667 | Bl 687 | OLSON | LEONARD | M | -1 | Blaine | 12/25/1926 | ||
| 23219 | DL 1045 | OLSON | LOUIS | M | 44 | Deer Lodge | 5/6/1924 | ||
| 12527 | DL 551 | OLSON | MARG. | F | 24 | Deer Lodge | 3/9/1922 | ||
| 16432 | Ana 624 | OLSON | MARIE | E | F | 4 | Deer Lodge | 7/15/1923 | |
| 48862 | SB 2338 | OLSON | MARTIN | A | M | 37 | Silver Bow | 4/1/1928 | |
| 55173 | Sdn 680 | OLSON | MARTIN | J | M | 47 | Sheridan | 12/26/1929 | |
| 35425 | JB 120 | OLSON | MARY | A | F | -1 | Judith Basin | 3/2/1926 | |
| 14493 | Mad 241 | OLSON | MATILDA | M | 64 | Madison | 12/13/1922 | ||
| 8235 | Gld 194 | OLSON | MELVIN | LEROY | M | -1 | Dawson | 12/4/1921 | |
| 46636 | Hav 899 | OLSON | MINA | F | 81 | Hill | 11/1/1928 | ||
| 7840 | GF 732 | OLSON | MRS PAULINE | F | 50 | Cascade | 1/20/1921 | ||
| 23716 | GF 1722 | OLSON | MRS. ANNA | F | 83 | Cascade | 3/31/1924 | ||
| 31477 | Roos-505 | OLSON | MRS. HILMA | A | F | 59 | Roosevelt | 6/28/1925 | |
| 5653 | Val 163 | OLSON | MRS. LYDIA | M | F | 38 | Valley | 7/28/1920 | |
| 55415 | Val 861 | OLSON | MRS.MOLLIE | F | 45 | Valley | 6/26/1929 | ||
| 38681 | Boz 762 | OLSON | NELLIE | F | 76 | Gallatin | 3/23/1927 | ||
| 5657 | Val 167 | OLSON | NELS | M | 29 | Valley | 8/26/1920 | ||
| 11682 | Bt 1888 | OLSON | OLAF | M | 47 | Silver Bow | 2/14/1922 | ||
| 30055 | LC-400 | OLSON | OLAF | R | M | 35 | Lewis & Clark | 3/28/1925 | |
| 10738 | Val 193 | OLSON | OLE | J | M | -1 | Valley | 1/3/1921 | |
| 11265 | Bl 296 | OLSON | OLE | O | M | 89 | Blaine | 6/20/1922 | |
| 41304 | Kspl 965 | OLSON | OLIVE | L | F | 18 | Flathead | 9/15/1927 | |
| 54178 | Phil 564 | OLSON | OLIVER | M | 65 | Phillips | 12/10/1929 | ||
| 48564 | Ri 593 | OLSON | ORVILLE | K | M | -1 | Richland | 4/4/1928 | |
| 35893 | Liv 661 | OLSON | OSCAR | E | 0 | Park | 12/15/1926 | Sex not provided | |
| 18105 | DL 900 | OLSON | OSCAR | C | M | 3 | Deer Lodge | 9/18/1923 | |
| 24303 | Hel 1079 | OLSON | OSCAR | A | M | 65 | Lewis & Clark | 3/28/1924 | |
| 43640 | Ana 1342 | OLSON | OSCAR | W | M | 49 | Deer Lodge | 3/5/1928 | |
| 5718 | Wh 80 | OLSON | PETER | S | M | 34 | Wheatland | 4/24/1920 | |
| 13468 | Gld 204 | OLSON | PETER | A | M | 60 | Dawson | 1/13/1922 | |
| 34206 | DL 1417 | OLSON | PETRA | E | F | 44 | Deer Lodge | 5/21/1926 | |
| 47783 | Min 165 | OLSON | PETROUS | M | 54 | Mineral | 7/4/1928 | ||
| 38601 | Blgs 1989 | OLSON | REUBEN | M | 39 | Yellowstone | 10/19/1927 | ||
| 6318 | Blgs 663 | OLSON | ROBERT | HOWRD | M | -1 | Yellowstone | 9/29/1921 | |
| 35884 | Liv 651 | OLSON | ROBERT | M | 76 | Park | 10/7/1926 | ||
| 28757 | Fer-511 | OLSON | ROY | M | 1 | Fergus | 4/2/1925 | ||
| 51798 | Fltd 1081 | OLSON | SAMUEL | M | 97 | Flathead | 1/17/1929 | ||
| 3623 | Lstn 174 | OLSON | SEGVERT | G | M | 37 | Fergus | 7/19/1920 | |
| 29360 | Gld-407 | OLSON | SIGVORT | M | 72 | Dawson | 1/15/1925 | ||
| 25003 | Lstn 613 | OLSON | SIGWELL | M | 16 | Fergus | 9/8/1924 | ||
| 29251 | GF-2244 | OLSON | SINA | F | 75 | Cascade | 12/3/1925 | ||
| 34667 | GF 2297 | OLSON | STELLA | F | 13 | Cascade | 2/16/1926 | ||
| 16031 | SwG 124 | OLSON | THEO. | F | -1 | Sweet Grass | 5/22/1922 | ||
| 49192 | SwG 365 | OLSON | THEODORE | M | 9 | Sweet Grass | 8/23/1928 | ||
| 48679 | Roos 802 | OLSON | THEODORE Wm. | M | 14 | Roosevelt | 4/23/1928 | ||
| 1227 | Bt 912 | OLSON | THORLEIF | M | 52 | Silver Bow | 4/6/1920 | ||
| 54828 | San 482 | OLSON | VICTOR | M | 1 | Sanders | 11/26/1929 | Age not known | |
| 37285 | San 351 | OLSON | VICTOR | M | 38 | Sanders | 9/24/1926 | ||
| 5031 | Roos 73 | OLSON | WALLACE | M | 26 | Roosevelt | 2/21/1920 | ||
| 36452 | MslaC 1810 | OLSON | WALTER | J | M | -1 | Missoula | 8/16/1926 | |
| 41332 | Kspl 993 | OLSON | WANDA | C | F | 35 | Flathead | 12/1/1927 | aka Clark |
| 3286 | Kspl 114 | OLSRUD | HANS | C | M | 70 | Flathead | 2/8/1920 | |
| 52993 | Kspl 1132 | OLSRUD | MENS | M | 69 | Flathead | 3/28/1929 | ||
| 51799 | Fltd 1082 | OLSRUD | RANGDI | C | F | 76 | Flathead | 1/27/1929 | |
| 7958 | GF 855 | OLSZEWSKI | MARION | A | F | 1 | Cascade | 6/7/1921 | |
| 49454 | Wh 382 | OLUND | INF. OF CLARENCE | M | 0 | Wheatland | 11/17/1928 | ||
| 20817 | Ri 287 | OLVERA | JOSE | M | 30 | Richland | 7/20/1923 | ||
| 43018 | SB 2113 | OLWELL | JAMES | M | 63 | Silver Bow | 5/2/1927 | ||
| 51632 | DL2061 | O'MALLEY | ANTHONY | M | 52 | Deer Lodge | 9/21/1929 | ||
| 43979 | Blgs 2040 | O'MALLEY | JAMES | P | M | 52 | Yellowstone | 1/2/1928 | |
| 28688 | DLCy-159 | O'MALLEY | JOHN | J | M | 30 | Powell | 8/29/1925 | |
| 33116 | Bt 4356 | O'MALLEY | JOHN | J | M | 34 | Silver Bow | 2/26/1926 | |
| 50576 | Bt 6541 | O'MALLEY | MADELINE | F | 2 | Silver Bow | 4/29/1929 | ||
| 30131 | Lin-352 | O'MALLEY | MARY | V | F | -1 | Lincoln | 1/2/1925 | |
| 38982 | Bt 5118 | OMAN | EDWARD | M | 43 | Silver Bow | 4/23/1927 | ||
| 35765 | Lin 421 | OMAN | HERBERT | W | M | -1 | Lincoln | 2/26/1926 | |
| 8567 | HI 143 | OMAN | LEONARD P | K | M | 16 | Hill | 11/4/1921 | |
| 39345 | Bt 5491 | OMAN | ROBERT | M | 57 | Silver Bow | 12/4/1927 | ||
| 46728 | Hel 1816 | O'MARA | INF. OF ROY | F | 0 | Lewis & Clark | 4/19/1928 | ||
| 11844 | Bt 2060 | O'MARA | JOHN | P | M | 45 | Silver Bow | 5/12/1922 | |
| 384 | Blgs 327 | OMARY | CATHERINE | A | F | 102 | Yellowstone | 4/5/1920 | |
| 33145 | Bt 4386 | O'MEARA | ELIZABETH | F | 76 | Silver Bow | 3/9/1926 | ||
| 37240 | Roos 686 | OMER | C | W | M | 0 | Roosevelt | 12/18/1926 | |
| 14906 | MslaC 827 | O'MERA | MARVIN | M | 10 | Missoula | 6/30/1922 | ||
| 4000 | Msla 148 | OMIRE | BABY | M | -1 | Missoula | 3/22/1920 | ||
| 8302 | Hav 204 | OMLIE | BABY | F | -1 | Hill | 2/10/1921 | ||
| 40374 | GF 2665 | OMMUNDSEN | MILDRED | C | F | 3 | Cascade | 3/29/1927 | |
| 8808 | Lin 132 | O'MOLLY | CHAS | E | M | 43 | Lincoln | 4/28/1921 | |
| 25083 | Mc 133 | OMOTH | DANIEL | L | M | 1 | McCone | 6/28/1924 | |
| 7920 | GF 816 | OMSTAD | MILDRED | MAY | F | 17 | Cascade | 4/28/1921 | |
| 36445 | MslaC 1803 | OMUNDSON | SVEN | M | 33 | Missoula | 7/30/1926 | ||
| 41861 | MC 1041 | ONATA | RALPH | M | -1 | Custer | 8/15/1927 | ||
| 36195 | MC 995 | ONATE | PETER | M | -1 | Custer | 8/26/1926 | ||
| 11939 | Bt 2159 | ONDA | MIKE | M | 53 | Silver Bow | 7/21/1922 | ||
| 38963 | Bt 5099 | ONE | BABY | F | -1 | Silver Bow | 4/10/1927 | ||
| 54278 | Pon 576 | ONE | INF OF WM. | M | 0 | Pondera | 11/3/1929 | INF OF | |
| 44537 | Bt 5686 | ONE | INF. OF Wm. | M | 0 | Silver Bow | 3/2/1928 | ||
| 15862 | SB 935 | ONE | JIM | M | 64 | Silver Bow | 8/31/1922 | ||
| 671 | Bt 1008 | ONE | WILLIAM | J | M | 58 | Silver Bow | 6/10/1920 | |
| 16710 | Blgs 1011 | ONE | YEE NAK | M | 63 | Yellowstone | 1/1/1923 | aka Yee Nak | |
| 11218 | BH 424 | ONE CHILD WOMAN | F | 27 | Big Horn | 12/22/1922 | |||
| 16626 | Bl 340 | ONE MAN | (none) | M | 62 | Blaine | 2/14/1923 | ||
| 49885 | Bl 907 | O'NEAL | B. FRANK | M | 77 | Blaine | 8/11/1929 | ||
| 32100 | Val-502 | O'NEAL | CLYDE | M | 47 | Valley | 3/10/1925 | ||
| 46592 | Hav 852 | O'NEAL | EVA | F | 24 | Hill | 6/15/1928 | ||
| 35181 | Hav 700 | O'NEAL | STEPHEN | D | M | 72 | Hill | 12/19/1926 | |
| 48850 | SB 2325 | ONEIL | DANIEL | M | 57 | Silver Bow | 3/11/1928 | ||
| 10291 | San 79 | O'NEIL | ALEXANDER | M | -1 | Sanders | 3/6/1921 | ||
| 50516 | Bt 6482 | O'NEIL | ANNIE | F | 51 | Silver Bow | 4/5/1929 | ||
| 10132 | Ri 152 | O'NEIL | AUDRY | Z | F | 12 | Richland | 4/20/1921 | |
| 22372 | Bt 3076 | O'NEIL | DENNIS | M | 40 | Silver Bow | 2/17/1924 | ||
| 14846 | MslaC 767 | O'NEIL | EDNA | L | F | 39 | Missoula | 4/12/1922 | |
| 6963 | Bt 1821 | O'NEIL | ELTON | E | M | 3 | Silver Bow | 12/22/1921 | |
| 22594 | Bt 3305 | O'NEIL | HELEN | F | -1 | Silver Bow | 7/8/1924 | ||
| 11887 | Bt 2105 | O'NEIL | JERRY | J | M | 46 | Silver Bow | 6/13/1922 | |
| 43125 | SB 2222 | O'NEIL | JERRY | C | M | 79 | Silver Bow | 10/14/1927 | |
| 54957 | SB 2653 | O'NEIL | JERRY | M | 24 | Silver Bow | 6/15/1929 | ||
| 28525 | DL-1202 | O'NEIL | JOHN | M | 37 | Deer Lodge | 3/9/1925 | ||
| 41721 | Lstn 933 | O'NEIL | JOHN | M | 75 | Fergus | 7/30/1927 | ||
| 35876 | Liv 643 | O'NEIL | MARY | F | 64 | Park | 9/22/1926 | ||
| 12601 | DL 622 | O'NEIL | ROBERT | M | 72 | Deer Lodge | 5/7/1922 | ||
| 41248 | Kspl 906 | O'NEIL | STANLEY | C | M | -1 | Flathead | 4/2/1927 | |
| 23363 | DL 999 | O'NEIL | T. | J | M | 1 | Deer Lodge | 2/17/1924 | |
| 44148 | Blgs 2217 | O'NEIL | THEODORE | R | M | 39 | Yellowstone | 8/12/1928 | |
| 27699 | Bt-3807 | O'NEILL | ANNA | J | F | -1 | Silver Bow | 5/1/1925 | |
| 5288 | SB 507 | O'NEILL | BABY | F | 0 | Silver Bow | 10/5/1920 | ||
| 6391 | Boz 227 | O'NEILL | BABY | F | -1 | Gallatin | 4/20/1921 | ||
| 6824 | Bt 1681 | O'NEILL | BABY | M | -1 | Silver Bow | 9/3/1921 | ||
| 34334 | DLCy 208 | O'NEILL | BARNEY | M | 56 | Powell | 9/5/1926 | ||
| 17276 | Bt 2659 | O'NEILL | BRIDGET Mrs | F | 55 | Silver Bow | 5/11/1923 | ||
| 50633 | Bt 6598 | O'NEILL | CATHERINE | F | 42 | Silver Bow | 5/16/1929 | ||
| 21096 | SB 1135 | O'NEILL | CHARLES | H | M | 40 | Silver Bow | 5/10/1923 | |
| 21607 | Yel 451 | O'NEILL | CHARLES | M | 63 | Yellowstone | 3/11/1923 | ||
| 17473 | Bt 2857 | O'NEILL | CLARENCE | F | M | 24 | Silver Bow | 10/5/1923 | |
| 15735 | SB 804 | O'NEILL | CON | M | 67 | Silver Bow | 2/21/1922 | ||
| 43635 | Ana 1337 | O'NEILL | CORNELIUS | J | M | 64 | Deer Lodge | 2/19/1928 | |
| 11984 | Bt 2206 | O'NEILL | DELIA | F | 28 | Silver Bow | 8/27/1922 | ||
| 44705 | Bt 5860 | O'NEILL | DENNIS | H | M | 62 | Silver Bow | 5/28/1928 | |
| 829 | Bt 1165 | O'NEILL | ELIZABETH | F | 70 | Silver Bow | 10/1/1920 | ||
| 6306 | Blgs 651 | O'NEILL | ESTES | CHARLES | M | 31 | Yellowstone | 9/4/1921 | |
| 44891 | Bt 6049 | O'NEILL | HUGH | M | 74 | Silver Bow | 9/19/1928 | ||
| 19743 | Lstn 557 | O'NEILL | INFANT | M | -1 | Fergus | 12/20/1923 | ||
| 27473 | Boz-633 | O'NEILL | IOLA | M | F | 3 | Gallatin | 12/26/1925 | |
| 1066 | Bt 747 | O'NEILL | J | J | M | 66 | Silver Bow | 2/22/1920 | |
| 17390 | Bt 2774 | O'NEILL | JAMES | M | 76 | Silver Bow | 8/6/1923 | ||
| 3124 | Hel 389 | O'NEILL | john | w | M | 72 | Lewis & Clark | 10/18/1920 | |
| 10002 | Rav 234 | O'NEILL | JOHN | M | 83 | Ravalli | 4/28/1921 | ||
| 24479 | Jef 246 | O'NEILL | JOHN | P | M | 64 | Jefferson | 6/4/1924 | |
| 31818 | SB-1762 | O'NEILL | JOHN | J | M | 27 | Silver Bow | 11/20/1925 | |
| 31827 | SB-176O | O'NEILL | JOHN | J | M | 20 | Silver Bow | 11/12/1925 | |
| 723 | Bt 1060 | O'NEILL | MARY | F | -1 | Silver Bow | 7/27/1920 | ||
| 1012 | Bt 691 | O'NEILL | MARY | F | 60 | Silver Bow | 1/15/1920 | ||
| 4601 | Pow 99 | O'NEILL | MARY | A | F | -1 | Powell | 11/5/1920 | |
| 15818 | SB 891 | O'NEILL | MARY | F | 54 | Silver Bow | 6/12/1922 | ||
| 16476 | Ana 668 | O'NEILL | MICHAEL | M | 59 | Deer Lodge | 11/11/1923 | ||
| 15883 | SB 956 | O'NEILL | MILSUM | J | M | 41 | Silver Bow | 10/9/1922 | |
| 8486 | Hel 557 | O'NEILL | MRS JULIA | M | F | 50 | Lewis & Clark | 9/9/1921 | |
| 2970 | Hel 234 | O'NEILL | MRS. ELIZA | P | F | 82 | Lewis & Clark | 1/19/1920 | |
| 16465 | Ana 657 | O'NEILL | OWEN | M | 75 | Deer Lodge | 10/19/1923 | ||
| 50865 | Bt 6831 | O'NEILL | OWEN | M | 41 | Silver Bow | 9/9/1929 | ||
| 44434 | Bt 5577 | O'NEILL | PATRICK | M | 37 | Silver Bow | 1/14/1928 | ||
| 17450 | Bt 2834 | O'NEILL | QUINN | M | 47 | Silver Bow | 9/7/1923 | ||
| 51683 | DLCy 320 | O'NEILL | ROY | M | 33 | Powell | 1/6/1929 | ||
| 17533 | Bt 2916 | O'NEILL | THERESSA | M | F | 18 | Silver Bow | 11/12/1923 | |
| 33462 | Bt 4696 | O'NEILL | THOS | P | M | 58 | Silver Bow | 9/17/1926 | |
| 12618 | DL 638 | O'NEILL | THOS. | M | 50 | Deer Lodge | 5/24/1922 | ||
| 34291 | DL 1503 | O'NEILL | WILLIAM | M | 52 | Deer Lodge | 12/17/1926 | ||
| 48992 | SB 2472 | O'NEILL | Wm. | M | 70 | Silver Bow | 10/27/1928 | ||
| 50479 | Bt 6445 | O'NEILL | WM. | P | M | 34 | Silver Bow | 3/14/1929 | |
| 11244 | Bl 273 | ONEMAN | MAMIE | F | 13 | Blaine | 3/30/1922 | ||
| 23386 | DLCy 125 | ONESNELLE | ST. JOSEPHIS | M | 59 | Powell | 11/28/1924 | ||
| 27002 | BH-676 | ONION | ELIZABETH | F | -1 | Big Horn | 7/9/1925 | ||
| 26998 | BH-672 | ONION | GABRIEL | M | 1 | Big Horn | 6/8/1925 | ||
| 38820 | Bt 4954 | ONISTO | ESTER | F | -1 | Silver Bow | 1/13/1927 | ||
| 12046 | Bt 2269 | ONKALO | JOHN | M | 31 | Silver Bow | 10/2/1922 | ||
| 12312 | Cbn 207 | ONKEN | GUS | F | -1 | Carbon | 5/17/1922 | ||
| 37784 | Tn 328 | ONOSCH | CARL | M | 27 | Teton | 6/18/1926 | ||
| 37601 | Sdn 479 | ONSTAD | CHARLOTTE | F | -1 | Sheridan | 11/5/1926 | ||
| 7881 | GF 776 | ONSUM | DOROTHY | F | 1 | Cascade | 3/12/1921 | ||
| 20832 | Ri 302 | ONTIVEROS | RAMONA | F | -1 | Richland | 5/27/1923 | ||
| 43434 | Val 686 | ONVIG | EDDA | C | F | -1 | Valley | 5/27/1927 | |
| 16764 | Blgs 1065 | OOSTEMA | ANNA | F | 60 | Yellowstone | 9/25/1923 | ||
| 5070 | San 54 | OPDAHL | CHRISTOPHER | M | 50 | Sanders | 5/25/1920 | ||
| 16343 | Yel 419 | OPDAL | ANTON | M | 46 | Yellowstone | 12/15/1922 | ||
| 12175 | Bt 2400 | OPECENSKY | MYRTLE | M | F | 32 | Silver Bow | 12/20/1922 | |
| 53678 | MC 1363 | OPFEL | PHILEMON | F | M | 70 | Custer | 11/22/1929 | |
| 39599 | Cho 535 | OPHUS | SERINA | B | F | 82 | Choteau | 1/7/1927 | |
| 10447 | SB 714 | OPIE | ELIZABETH | F | 70 | Silver Bow | 8/11/1921 | ||
| 31648 | SB-1589 | OPIE | INFANT | M | 0 | Silver Bow | 3/10/1925 | ||
| 6549 | Bt 1396 | OPIE | NICHOLAS | M | 61 | Silver Bow | 2/9/1921 | ||
| 25015 | Lstn 625 | OPITZ | PHYLLIS | P | F | 1 | Fergus | 10/17/1924 | |
| 4227 | MslaC 395 | OPITZ | ROSALIA | F | 7 | Missoula | 9/6/1920 | ||
| 21364 | SwG 177 | OPLAND | DORA | B | F | 7 | Sweet Grass | 12/7/1923 | |
| 39591 | Cbn 556 | OPLAND | HILDA | F | 37 | Carbon | 11/9/1927 | ||
| 19025 | Hel 1008 | OPP | DANIEL | A | M | -1 | Lewis & Clark | 12/28/1923 | |
| 13741 | Hel 684 | OPP | ESTHER | M | F | -1 | Lewis & Clark | 4/3/1922 | |
| 29711 | Hel-1371 | OPP | INFANT | M | 0 | Lewis & Clark | 12/13/1925 | ||
| 1585 | Cho 132 | OPPEGAARD | BABY | F | 1 | Choteau | 4/14/1920 | age unknown | |
| 6708 | Bt 1561 | OPPENHEIMER | HENRY | E | M | 52 | Silver Bow | 6/3/1921 | |
| 22346 | Bt 3047 | OPPENHEIMER | JOSEPH | E | M | 59 | Silver Bow | 1/31/1924 | |
| 27742 | Bt-3851 | OPPENHEIMER | MRS. SARAH | F | 71 | Silver Bow | 5/26/1925 | C 9710 inserted | |
| 49656 | Ana 1597 | OPPITZ | WM. | M | 61 | Deer Lodge | 6/21/1929 | ||
| 2466 | GF 536 | O'PRIST | LOUIS | M | 37 | Cascade | 5/20/1920 | ||
| 22400 | Bt 3105 | ORAGEN | BABY | F | 0 | Silver Bow | 3/4/1924 | ||
| 12021 | Bt 2244 | ORBECK | LENA | F | 47 | Silver Bow | 9/18/1922 | ||
| 51606 | DL2035 | ORCUTT | ARMINDA | F | 73 | Deer Lodge | 7/26/1929 | ||
| 16806 | Blgs 1108 | ORCUTT | ROSS | M | 2 | Yellowstone | 12/2/1923 | ||
| 31059 | Pon-305 | ORCUTT | WILLIAM | H | M | 79 | Pondera | 6/6/1925 | |
| 20589 | Pra 142 | ORDDIE | DAVID | J | M | 5 | Prairie | 7/27/1923 | |
| 22578 | Bt 3289 | O'REILLY | ED. | W | M | 48 | Silver Bow | 6/22/1924 | |
| 45180 | Cas 643 | O'REILLY | HENRY | M | 84 | Cascade | 3/28/1928 | ||
| 10049 | Rav 282 | O'REILLY | JOHN | J | M | 79 | Ravalli | 11/29/1921 | |
| 27498 | Bt-3601 | O'REILLY | MARY | F | 86 | Silver Bow | 1/1/1925 | ||
| 41032 | Hel 1663 | O'REILLY | MARY | F | 77 | Lewis & Clark | 6/22/1927 | ||
| 9885 | Pow 141 | O'REILLY | MICHAEL | M | -1 | Powell | 6/9/1921 | ||
| 9884 | Pow 140 | O'REILLY | PATRICK | M | -1 | Powell | 6/9/1921 | ||
| 50849 | Bt 6815 | OREM | W.B. | M | 58 | Silver Bow | 9/2/1929 | ||
| 39019 | Bt 5158 | OREN | PETER | S | M | 58 | Silver Bow | 5/8/1927 | |
| 38529 | Blgs 1917 | ORESKOVICH | MAT | M | 39 | Yellowstone | |||
| 36351 | MslaC 1710 | OREY | JOHN | W | M | 52 | Missoula | 3/17/1926 | |
| 49231 | Tl 336 | ORGAN | CHARLES | M | 73 | Toole | 8/10/1928 | ||
| 33703 | Bvd 350 | ORGILL | HATTIE | F | 38 | Beaverhead | 12/15/1926 | ||
| 51216 | Cas 763 | ORHAM | INF OF PETE | F | 0 | Cascade | 11/18/1929 | INF OF | |
| 40339 | GF 2629 | ORIET | BABY | F | -1 | Cascade | 2/21/1927 | ||
| 23870 | GF 1884 | ORIET | FRANCIS | E | M | 83 | Cascade | 9/20/1924 | |
| 13341 | GF 1279 | ORIET | NORMA | V | F | -1 | Cascade | 10/21/1922 | |
| 48185 | Phil 470 | O'RILEY | THOMAS | B | M | 41 | Phillips | 7/21/1928 | |
| 18628 | GF 1509 | ORISKO | ANNA | F | 17 | Cascade | 8/10/1923 | ||
| 28972 | GF-1962 | ORISKO | MRS. MARY | F | 41 | Cascade | 1/26/1925 | ||
| 51195 | Cas 742 | ORISKO | STEVE | M | 21 | Cascade | 7/13/1929 | ||
| 35179 | Hav 698 | ORLANDO | PETER | M | 44 | Hill | 12/18/1926 | ||
| 11441 | Blgs 857 | ORLANDO | SAMUEL | M | -1 | Yellowstone | 9/5/1922 | ||
| 6880 | Bt 1737 | ORLICH | GUKO | M | 2 | Silver Bow | 10/14/1921 | ||
| 37497 | SB 1986 | ORLICH | IRENE | F | 16 | Silver Bow | 11/10/1926 | ||
| 44715 | Bt 5870 | ORLICH | MICHAEL | M | 52 | Silver Bow | 6/3/1928 | ||
| 24993 | Lstn 601 | ORMAN | GEO | M | 53 | Fergus | 7/21/1924 | ||
| 31934 | Stw-374 | ORMAN | JACK | E | M | 1 | Stillwater | 9/13/1925 | |
| 45827 | Fltd 1056 | ORME | JAMES | H | M | 66 | Flathead | 9/22/1928 | |
| 10507 | SB 774 | ORMOLDE | ANTONE | F | -1 | Silver Bow | 12/19/1921 | ||
| 4164 | MslaC 331 | ORMSBEE | RICHARD | H | M | 63 | Missoula | 5/16/1920 | |
| 49177 | SwG 349 | ORMSBY | ALBERT | E | M | 79 | Sweet Grass | 3/1/1928 | |
| 12620 | DL 640 | ORNSTEIN | EMIL | J | M | 51 | Deer Lodge | 6/2/1922 | |
| 1803 | DL 303 | ORNSTEIN | SOL | M | 45 | Deer Lodge | 8/22/1920 | ||
| 52500 | Gld 728 | ORNSTROM | JOHN | M | 65 | Dawson | 10/25/1929 | ||
| 31644 | SB-1584 | OROS | CHARLES | M | 58 | Silver Bow | 3/1/1925 | ||
| 53359 | Liv 874 | O'ROURKE | DORTHY | F | 22 | Park | 4/18/1929 | ||
| 27820 | Bt-3929 | O'ROURKE | HELEN | M | F | -1 | Silver Bow | 7/2/1925 | |
| 27821 | Bt-3930 | O'ROURKE | INFANT | F | -1 | Silver Bow | 7/2/1925 | ||
| 27823 | Bt-3932 | O'ROURKE | INFANT | F | -1 | Silver Bow | 7/3/1925 | ||
| 42378 | Pk 373 | O'ROURKE | JAMES | S | M | 85 | Park | 11/29/1927 | |
| 45656 | DL 1896 | O'ROURKE | JOHN | M | 52 | Deer Lodge | 12/12/1928 | ||
| 30070 | LC-415 | O'ROURKE | MICHAEL | M | 73 | Lewis & Clark | 5/26/1925 | ||
| 5922 | Ana 353 | O'ROURKE | PATRICK | J | M | 70 | Deer Lodge | 7/9/1921 | |
| 44869 | Bt 6028 | O'ROURKE | THOMAS | ? | M | 47 | Silver Bow | 9/7/1928 | |
| 44157 | Blgs 2226 | OROZCO | INF. OF ALFREDO | M | 0 | Yellowstone | 8/23/1928 | ||
| 2646 | Gla 103 | ORPHAN | OLD COYOTE | F | 67 | Glacier | 4/13/1920 | ||
| 12291 | Cbn 186 | ORR | ELIZABETH | F | 80 | Carbon | 2/15/1922 | ||
| 36924 | Rbd 537 | ORR | HAROLD | M | 18 | Rosebud | 1/12/1926 | ||
| 36215 | Mgr 147 | ORR | HELEN | I | F | -1 | Meagher | 9/30/1926 | |
| 4335 | Musl 186 | ORR | ISABELLA | F | 43 | Musselshell | 5/2/1920 | ||
| 19445 | La 22 | ORR | LEONA MAY | F | -1 | Lake | 11/24/1923 | ||
| 52524 | Gra 363 | ORR | MARGARET | F | 11 | Granite | 5/15/1929 | ||
| 1987 | Fer 215 | ORR | MAY | E | F | 36 | Fergus | 12/22/1920 | |
| 30996 | Phil-328 | ORR | MRS. W. | H | F | 75 | Phillips | 11/28/1925 | |
| 55471 | Wh 395 | ORR | MRS.A.V.D. | F | 44 | Wheatland | 3/29/1929 | ||
| 54442 | Rav 992 | ORR | WENDELL | M | -1 | Ravalli | 2/19/1929 | ||
| 37342 | SB 1830 | ORR | WM | R | M | 58 | Silver Bow | 3/14/1926 | J Edgar searched. |
| 44012 | Blgs 2073 | ORRICK | JOHN | C | M | 55 | Yellowstone | 2/22/1928 | |
| 32411 | Ana 1106 | ORRINO | ALBERT | M | 0 | Deer Lodge | 11/16/1926 | ||
| 46839 | Hel 1933 | ORSELLO | FRANK | M | 45 | Lewis & Clark | 11/10/1928 | ||
| 50020 | Blgs 2439 | ORSER | ANNIE | C | F | 88 | Yellowstone | 5/24/1929 | |
| 11145 | BH 341 | ORSER | WM. | B | M | 50 | Big Horn | 10/2/1922 | |
| 14115 | LC 217 | ORSILO | WM. | M | -1 | Lewis & Clark | 7/5/1922 | ||
| 55484 | Wh 410 | ORSLAND | OLE | M | 48 | Wheatland | 9/4/1929 | ||
| 1886 | Fal 55 1/2 | ORSON | FOREST | S | M | -1 | Fallon | 12/15/1920 | |
| 17269 | Bt 2651 | ORTEGON | JOHN | M | 55 | Silver Bow | 5/7/1923 | ||
| 35961 | Lstn 797 | ORTEN | INFANT | F | 0 | Fergus | 6/4/1926 | ||
| 2666 | Gla 122 | ORTGIER | EUNICE | L | F | -1 | Glacier | 6/30/1920 | |
| 44274 | Boz 862 | ORTON | ALFRED | W | M | 73 | Gallatin | 2/9/1928 | |
| 17316 | Bt 2700 | ORTON | FRED | L | M | 62 | Silver Bow | 6/15/1923 | |
| 35609 | La 209 | ORTON | HARVY | M | 2 | Lake | 2/6/1926 | ||
| 53126 | La 549 | ORTON | LENA | B | F | 59 | Lake | 4/29/1929 | |
| 50955 | Bt 6922 | ORTON | WALTER | S | M | 59 | Silver Bow | 10/27/1929 | |
| 4808 | Ri 104 | ORTSCHEID | GEORGE | W | M | 39 | Richland | 4/27/1920 | |
| 4471 | Pk 64 | ORVIS | LOUIS | w | M | 67 | Park | 3/27/1920 | |
| 3637 | Lstn 188 | ORVIS | MARY | C | F | 63 | Fergus | 9/3/1920 | |
| 22884 | Bvd 298 | ORWELL | JAMES | M | 55 | Beaverhead | 2/1/1924 | ||
| 11663 | Bt 1868 | ORWELL | RUTH | F | 0 | Silver Bow | 1/31/1922 | ||
| 17145 | Bt 2526 | OSBORN | ANDREW | M | 60 | Silver Bow | 2/27/1923 | ||
| 55122 | Sdn 625 | OSBORN | CALVIN | L | M | -1 | Sheridan | 5/24/1929 | |
| 7255 | Cus 32 | OSBORN | CHARLES | F | M | 73 | Custer | 4/13/1921 | |
| 30039 | LC-385 | OSBORN | CLAUDE | M | 38 | Lewis & Clark | 2/18/1925 | ||
| 45246 | Cbn 582 | OSBORN | FRANCES | F | 82 | Carbon | 3/5/1928 | ||
| 41574 | Lin 505 | OSBORN | GEORGIA | A | F | 66 | Lincoln | 12/28/1927 | |
| 47046 | Kspl 1065 | OSBORN | HARRY | K | M | 54 | Flathead | 8/15/1928 | |
| 40794 | Gld 562 | OSBORN | HERMAN | F | M | 20 | Dawson | 11/7/1927 | |
| 14425 | Lstn 461 | OSBORN | JAS. | M | 53 | Fergus | 12/19/1922 | ||
| 22895 | Bvd 311 | OSBORN | JAS. | M | 82 | Beaverhead | 8/11/1924 | ||
| 3804 | MC 198 | OSBORN | JOHN | A | M | 52 | Custer | 2/25/1920 | |
| 27734 | Bt-3842 | OSBORN | JOHN | M | M | 64 | Silver Bow | 5/19/1925 | |
| 30357 | Lstn-721 | OSBORN | JOHN | M | 65 | Fergus | 11/7/1925 | ||
| 15067 | Musl 375 | OSBORN | JOSEPH | M | M | 58 | Musselshell | 8/17/1922 | |
| 17907 | Daw 113 | OSBORN | LESLEY | E | M | 76 | Dawson | 10/16/1923 | |
| 55057 | SB 2753 | OSBORN | MARY | F | 67 | Silver Bow | 11/17/1929 | ||
| 34626 | Gar 175 | OSBORN | MILFORD | R | M | 1 | Garfield | 12/4/1926 | |
| 25940 | RL 268 | OSBORN | WILLIAM | C | M | 47 | Carbon | 1/16/1924 | |
| 28920 | Gal-419 | OSBORNE | ARTHUR | W | M | 51 | Gallatin | 6/2/1925 | |
| 54383 | Rav 1039 | OSBORNE | CHARLES | G | M | 73 | Ravalli | 5/9/1929 | |
| 10229 | RL 176 | OSBORNE | EDNA | S | F | 31 | Carbon | 12/20/1921 | |
| 1197 | Bt 882 | OSBORNE | FLORENCE | F | -1 | Silver Bow | 3/20/1920 | ||
| 19733 | Lstn 547 | OSBORNE | HANNAH | F | 65 | Fergus | 11/10/1923 | ||
| 42053 | MslaC 1991 | OSBORNE | JOHN | M | 44 | Missoula | 3/27/1927 | ||
| 31154 | Rav-612 | OSBORNE | LOVELL | M | 74 | Ravalli | 3/3/1925 | ||
| 28364 | Cus-140 | OSBORNE | MARY | L | F | 72 | Custer | 9/25/1925 | |
| 18188 | DLCy 66 | OSBORNE | MORTON | H | M | 37 | Powell | 6/5/1923 | |
| 9478 | MslaC 541 | OSBORNE | MRS AGNES | F | 71 | Missoula | 6/9/1921 | ||
| 16040 | SwG 133 | OSBURN | CORA | G | F | 12 | Sweet Grass | 8/15/1922 | |
| 4582 | Pow 79 | OSBURN | MRS. SADIE | E | F | 50 | Powell | 7/8/1920 | |
| 47491 | Lstn 1072 | OSBURNSEN | RALPH | T | M | 10 | Fergus | 11/24/1928 | |
| 16634 | Bl 349 | OSCVIRK | (none) | M | 0 | Blaine | 4/22/1923 | ||
| 1085 | Bt 766 | OSELLO | MICHAEL | M | 19 | Silver Bow | 2/14/1920 | ||
| 4024 | Msla 177 | OSEN | BABY | F | 0 | Missoula | 7/27/1920 | ||
| 36606 | Musl 696 | OSET | MRS. HELLEN | F | 30 | Musselshell | 10/1/1926 | ||
| 19093 | Hel 875 | OSGOOD | EVALINA | F | 70 | Lewis & Clark | 4/8/1923 | ||
| 25170 | MC 759 | OSGOOD | LLOYD | T | M | 23 | Custer | 10/8/1924 | |
| 8526 | Hel 597 | OSGOOD | MORGAN | M | -1 | Lewis & Clark | 11/22/1921 | ||
| 6736 | Bt 1590 | O'SHEA | BABY | F | -1 | Silver Bow | 6/20/1921 | ||
| 27867 | Bt-3977 | O'SHEA | BRIDGET | F | 93 | Silver Bow | 8/8/1925 | ||
| 34456 | Fer 631 | O'SHEA | LOUISE | F | 66 | Fergus | 12/15/1926 | ||
| 3307 | Kspl 135 | O'SHEA | MICHAL | J | M | 65 | Flathead | 4/6/1920 | |
| 34942 | GF 2573 | O'SHEA | PATRICK | M | 81 | Cascade | 12/18/1926 | ||
| 12769 | DLCy 42 | OSHITA | K. | M | 52 | Powell | 12/30/1922 | ||
| 14790 | MslaC 711 | OSHNER | ETHEL | F | -1 | Missoula | 2/9/1922 | ||
| 20876 | RL 261 | OSILA | ERIC | M | 50 | Carbon | 12/1/1923 | aka ASIALA | |
| 35436 | JB 132 | OSLER | EDITH | J | F | 2 | Judith Basin | 9/27/1926 | |
| 18266 | Fer 394 | OSLER | MABLISSA ANN | F | 66 | Fergus | 5/12/1923 | ||
| 35743 | Lib 85 | OSLER | MARY | D | F | 74 | Liberty | 4/1/1926 | |
| 10597 | Stw 177 | OSMAN | KENNETH | W | M | 1 | Stillwater | 10/14/1921 | |
| 9143 | MC 395 | OSMER | JESSIE | L | F | 60 | Custer | 6/10/1921 | |
| 51693 | DLCy 331 | OSMERS | DANIEL | M | 66 | Powell | 3/17/1929 | ||
| 41690 | Lstn 902 | OSMERS | HENRY | M | 72 | Fergus | 5/6/1927 | ||
| 28967 | Gar-150 | OSMUNDSON | G | S | M | 75 | Garfield | 12/2/1925 | |
| 44249 | Blgs 2319 | OSNESS | ARLON | H | M | 1 | Yellowstone | 12/23/1928 | |
| 5833 | Yel 204 | OSNESS | BABY | M | 0 | Yellowstone | 9/4/1920 | ||
| 51232 | Cbn 640 | OSNICK | AGNES | F | 47 | Carbon | 2/1/1929 | ||
| 17913 | Daw 94 | OSONICH | JACK | M | 56 | Dawson | 1/3/1923 | ||
| 18587 | GF 1468 | OSSEY | BABY | F | 0 | Cascade | 6/11/1923 | ||
| 18479 | GF 1360 | OSTBERG | OTTO | E | M | 42 | Cascade | 2/2/1923 | |
| 6756 | Bt 1612 | OSTBERG | WILLIAM | MCK | M | 23 | Silver Bow | 7/3/1921 | |
| 11366 | Blgs 782 | OSTEN | BESSIE | I | F | 35 | Yellowstone | 4/19/1922 | |
| 26438 | Stw 294 | OSTENSON | PETER | M | 56 | Stillwater | 1/11/1924 | ||
| 18224 | Fal 115 | OSTER | HENRY | F | M | 35 | Fallon | 7/16/1923 | |
| 19252 | JB 58 | OSTERGRANT | CHARLES | M | 65 | Judith Basin | 4/14/1923 | ||
| 45736 | Fal 285 | OSTERHANT | Wm. | J | M | 42 | Fallon | 10/17/1928 | |
| 720 | Bt 1057 | OSTERHOLM | JOHN | M | 58 | Silver Bow | 7/24/1920 | ||
| 40315 | GF 2603 | OSTERMAN | BABY | M | -1 | Cascade | 1/22/1927 | ||
| 1376 | Bvd 161 | OSTERMAN | GEORGE | M | 52 | Beaverhead | 11/11/1920 | ||
| 8093 | GF 989 | OSTERMAN | JOHN | M | 60 | Cascade | 12/14/1921 | ||
| 17189 | Bt 2570 | OSTERMAN | JOHN | M | 47 | Silver Bow | 3/23/1923 | ||
| 36469 | MslaC 1827 | OSTERMEYER | FRITZ | M | 60 | Missoula | 9/6/1926 | ||
| 5841 | Yel 212 | OSTERMILLER | BABY | F | 0 | Yellowstone | 11/16/1920 | ||
| 26793 | Yel 585 | OSTERMILLER | KATHERINE | M | F | 47 | Yellowstone | 12/9/1924 | |
| 55510 | Yel 1000 | OSTERMILLER | MARGARET | F | 86 | Yellowstone | 9/9/1929 | ||
| 21587 | Yel 431 | OSTERMILLER | WILLIAM | M | -1 | Yellowstone | 1/20/1923 | ||
| 33638 | Bt 4874 | OSTERRAN | FRANK | M | 59 | Silver Bow | 12/12/1926 | ||
| 8428 | Hel 485 | OSTLE | HENRY | M | 79 | Lewis & Clark | 4/5/1921 | ||
| 4167 | MslaC 334 | OSTLIE | LEWIS | M | 60 | Missoula | 5/20/1920 | ||
| 50778 | Bt 6743 | OSTLUND | JOHN | M | 0 | Silver Bow | 7/22/1929 | ||
| 51141 | Car 213 | OSTLUND | JOHN | M | 70 | Carter | 5/9/1929 | ||
| 54488 | Rbd 883 | OSTRANDER | CLARA | M | F | 70 | Rosebud | 5/6/1929 | |
| 48105 | Musl 805 | OSTRANDER | HENRY | W | M | 69 | Musselshell | 5/28/1928 | |
| 48285 | Pon 493 | OSTROM | ALLIE | F | F | 58 | Pondera | 8/5/1928 | |
| 17137 | Bt 2518 | OSTROM | ARVID | M | 36 | Silver Bow | 2/23/1923 | ||
| 26685 | Wh 268 | OSTROM | BABY | F | 0 | Wheatland | 7/7/1924 | aka ASTROM | |
| 20090 | MslaC 1039 | OSTROM | MATT | M | 56 | Missoula | 4/17/1923 | ||
| 20965 | San 196 | OSTROM | VIIOLA MAY | F | 50 | Sanders | 12/26/1923 | ||
| 44222 | Blgs 2292 | OSTWALD | INF. OF JNO. | M | 0 | Yellowstone | 11/21/1928 | ||
| 37488 | SB 1977 | O'SULLIVAN | TIMOTHY | J | M | -1 | Silver Bow | 10/25/1926 | |
| 18125 | DL 921 | OSVAGI | STEVE | M | 42 | Deer Lodge | 11/7/1923 | ||
| 1257 | Bt 942 | OSWALD | ANNIE | F | 49 | Silver Bow | 4/27/1920 | ||
| 13634 | Hav 322 | OSWALD | JOSEPH | M | 53 | Hill | 7/15/1922 | ||
| 27637 | Bt-3745 | OSWALD | MICHAEL | M | 64 | Silver Bow | 3/26/1925 | ||
| 47963 | MslaC 2304 | OSWALD | MILLIE | M | F | 55 | Missoula | 7/12/1928 | |
| 5801 | Yel 172 | OSWALT | HENRY | M | 1 | Yellowstone | 6/1/1920 | age unknown | |
| 52137 | GF 3508 | OSWEILER | JUNE | E | F | -1 | Cascade | 6/5/1929 | |
| 38815 | Bt 4949 | OSWOLD | CATHERINE | F | 85 | Silver Bow | 1/11/1927 | ||
| 35400 | Hl 309 | OSWOLD | CHRISTOPHER | M | 39 | Hill | 7/19/1926 | ||
| 22992 | Cbn 311 | OTHEISER | BABY | F | 0 | Carbon | 2/18/1924 | ||
| 49787 | BH 1070 | OTHER BLACK BIRD | IRMA | F | 15 | Big Horn | 5/10/1929 | ||
| 32543 | BH 807 | OTHER BULL | M | 61 | Big Horn | 12/13/1926 | |||
| 11189 | BH 395 | OTHER HEART | THE | M | 52 | Big Horn | 3/17/1922 | aka The Other Heart | |
| 36959 | Rbd 578 | OTHER MEDICINE | ISAAC | M | 28 | Rosebud | 5/11/1926 | ||
| 43590 | Yel 855 | OTIS | CLARENCE | D | M | -1 | Yellowstone | 9/23/1927 | |
| 44957 | Bt 6116 | OTIS | ELLEN | F | 41 | Silver Bow | 10/27/1928 | ||
| 3593 | Lstn 144 | OTIS | MARGARET | A | M | 32 | Fergus | 4/26/1920 | |
| 32713 | Blgs 1635 | OTIS | MARY | P | F | 76 | Yellowstone | 3/9/1926 | |
| 5797 | Yel 168 | OTIS | STEPHEN | P | M | 79 | Yellowstone | 5/17/1920 | |
| 33099 | Bt 4339 | OTIS | THOMAS | C | M | 12 | Silver Bow | 2/22/1926 | |
| 29127 | GF-2120 | OTNESS | BERNARD | M | 15 | Cascade | 7/10/1925 | ||
| 39184 | Bt 5328 | OTONICHAR | BABY | F | -1 | Silver Bow | 8/25/1927 | ||
| 44252 | Blgs 2322 | OTOOLE | ANNIE | F | 45 | Yellowstone | 12/24/1928 | ||
| 6485 | Bt 1332 | O'TOOLE | AGNES | F | 20 | Silver Bow | 1/5/1921 | aka TOOLE | |
| 40843 | GV 105 | O'TOOLE | ANTHONY | W | M | 76 | Golden Valley | 3/17/1927 | |
| 39342 | Bt 5489 | O'TOOLE | FRANCIS | E | M | 24 | Silver Bow | 12/4/1927 | |
| 49606 | Ana 1548 | O'TOOLE | JAMES | J | M | 59 | Deer Lodge | 4/9/1929 | |
| 15876 | SB 949 | O'TOOLE | VICTORIA | F | 41 | Silver Bow | 10/2/1922 | ||
| 42284 | Musl 765 | OTOSKI | WM | M | 71 | Musselshell | 10/14/1927 | ||
| 48451 | Rav 984 | OTT | LESLIE | W | M | 16 | Ravalli | 12/29/1928 | |
| 49455 | Wh 383 | OTT | MILTON | D | M | 56 | Wheatland | 11/29/1928 | |
| 20227 | MslaC 1174 | OTT | OLONZO | H | M | 31 | Missoula | 11/28/1923 | |
| 9125 | MC 377 | OTTE | MRSBESSIE | F | 26 | Custer | 4/22/1921 | ||
| 41757 | Lstn 970 | OTTEN | ALICE | F | 77 | Fergus | 12/31/1927 | ||
| 41453 | La 410 | OTTER | CECILLE | M | F | -1 | Lake | 12/28/1927 | |
| 41452 | La 409 | OTTER | LAWRENCE JR | M | -1 | Lake | 12/28/1927 | ||
| 16563 | BH 486 | OTTERBULL | HARTMAN | P | M | -1 | Big Horn | 7/20/1923 | |
| 4847 | Ri 79 | OTTERHOLM | GORDON | L | M | -1 | Richland | 1/10/1920 | |
| 18707 | GF 1589 | OTTERMO | GUSTAV | M | 49 | Cascade | 11/20/1923 | ||
| 39890 | DL 1602 | OTTERSON | JOHN | M | 57 | Deer Lodge | 6/16/1927 | ||
| 21529 | Wh 216 | OTTESON | NELS | M | 44 | Wheatland | 3/11/1923 | ||
| 11448 | Blgs 864 | OTTESON | TOUVILLE | M | 38 | Yellowstone | 9/20/1922 | ||
| 47071 | Kspl 1091 | OTTIE | FRED | M | 60 | Flathead | 12/5/1928 | ||
| 25130 | MC 717 | OTTINGER | ARTHUR | Z | M | 42 | Custer | 5/2/1924 | |
| 20324 | Musl 430 | OTTMAN | FAY | C | F | -1 | Musselshell | 2/28/1923 | |
| 52635 | Hav 969 | OTTO | ANNIE | M | F | 56 | Hill | 5/13/1929 | |
| 42714 | Ri 552 | OTTO | AUGUST | F | M | 62 | Richland | 6/17/1927 | |
| 31509 | Roos-537 | OTTO | EDWARD | M | 26 | Roosevelt | 2/18/1925 | ||
| 17889 | Dan 92 | OTTO | JEAN FRANCIS | F | 1 | Daniels | 11/16/1923 | ||
| 28481 | DL-1158 | OTTO | JULIA | F | 81 | Deer Lodge | 1/3/1925 | ||
| 44960 | Bt 6119 | OTTO | MILDRED | E | F | 23 | Silver Bow | 10/29/1928 | |
| 37620 | Stw 404 | OTTO | WM | L | M | 48 | Stillwater | 2/28/1926 | |
| 43617 | Ana 1316 | OTTOSON | CLAUS | M | 41 | Deer Lodge | 1/5/1928 | ||
| 31688 | SB-1629 | OUELLETTE | INFANT | m | -1 | Silver Bow | 4/16/1925 | ||
| 45766 | Fer 722 | OUELLETTE | ROY | E | M | 18 | Fergus | 6/4/1928 | |
| 28055 | Bt-4161 | OUIMET | ALTA | T | F | -1 | Silver Bow | 11/30/1925 | |
| 28034 | Bt-4140 | OUIMET | INFANT | F | -1 | Silver Bow | 11/19/1925 | ||
| 50470 | Bt 6436 | OULDS | IMPI | F | 29 | Silver Bow | 3/11/1929 | ||
| 18286 | Fer 414 | OULETTE | FRANCES | F | 43 | Fergus | 9/18/1923 | ||
| 21429 | Tn 221 | OULTON | CHRISTINA | F | 69 | Teton | 8/29/1923 | ||
| 698 | Bt 1034 | OVCINA | ROSID | M | 30 | Silver Bow | 7/8/1920 | ||
| 23983 | Gla 377 | OVER | CHIEF ALL | M | 74 | Glacier | 5/5/1924 | aka CHIEF ALL OVER | |
| 43307 | Tl 258 | OVERBY | GERTRUDE | F | 73 | Toole | 2/4/1927 | aka OVERLY | |
| 43290 | SwG 328 | OVERCASH | BABY | F | -1 | Sweet Grass | 8/1/1927 | ||
| 237 | Bl 114 | OVERCAST | CLARA | M | F | 1 | Blaine | 1/30/1920 | |
| 43956 | Bl 838 | OVERCAST | SARAH | A | F | 70 | Blaine | 9/17/1928 | |
| 8354 | Hav 255 | OVEREND | ANNIE | F | 75 | Hill | 8/27/1921 | ||
| 51807 | Fltd 1090 | OVEREND | FLORENCE | F | 46 | Flathead | 2/26/1929 | ||
| 7209 | Cho 219 | OVERFIELD | GEORGE | M | 65 | Choteau | 6/21/1921 | ||
| 5382 | Sdn 118 | OVERGOARD | NICKOLAR | M | 85 | Sheridan | 4/15/1920 | ||
| 43803 | BH 1007 | OVERGROUND | BIRDIE | F | 36 | Big Horn | 12/21/1928 | ||
| 6449 | Br 61 | OVERILL | TRUMAN | N | M | 66 | Broadwater | 4/8/1921 | aka AVERILL |
| 4432 | Phil 70 | OVERING | WILLIAM | A | M | 76 | Phillips | 5/6/1920 | |
| 5398 | Sdn 135 | OVERLAND | GEORGE | H | M | -1 | Sheridan | 8/1/1920 | |
| 5397 | Sdn 134 | OVERLAND | NELLIE | G | F | 1 | Sheridan | 7/14/1920 | |
| 21274 | Sdn 279 | OVERLAND | OLE | O | M | 44 | Sheridan | 8/4/1923 | |
| 48 | Ana 202 | OVERLY | CORA | E | F | 59 | Deer Lodge | 4/3/1920 | |
| 43306 | Tl 258 | OVERLY | GERTRUDE | F | 73 | Toole | 2/4/1927 | aka OVERBY | |
| 35510 | Kspl 779 | OVERMAN | ROLLAND | R | M | 24 | Flathead | 3/20/1926 | |
| 35973 | Lstn 809 | OVERROCKER | CHARLES | H | M | 73 | Fergus | ||
| 5524 | SwG 71 | OVERSTREET | BABY | M | 0 | Sweet Grass | 11/15/1920 | ||
| 28295 | Cbn-408 | OVERSTREET | HARRY | M | 0 | Carbon | 10/3/1925 | ||
| 54544 | Ri 639 | OVERSTREET | JOHN | G | M | 71 | Richland | 1/3/1929 | |
| 11580 | Boz 353 | OVERSTREET | MARY | A | F | 90 | Gallatin | 9/27/1922 | |
| 42522 | Rav 824 | OVERTURF | ALFRED | L | M | 2 | Ravalli | 5/23/1927 | |
| 36874 | Rav 730 | OVERTURF | EMMA | M | F | 70 | Ravalli | 6/26/1926 | |
| 25746 | Rav 535 | OVERTURF | FRANK | H | M | 65 | Ravalli | 4/24/1924 | |
| 31196 | Rav-654 | OVERTURF | HAROLD | J | M | 28 | Ravalli | 9/5/1925 | |
| 15325 | Rav 320 | OVERTURF | HENRIETTA | F | 82 | Ravalli | 3/11/1922 | ||
| 20603 | Rav 415 | OVERTURF | LEWIS | W | M | 59 | Ravalli | 1/9/1923 | |
| 25741 | Rav 530 | OVERTURF | ROZELLA | F | 85 | Ravalli | 4/12/1924 | ||
| 44107 | Blgs 2172 | OVERTURF | SHIRLEY | A | F | -1 | Yellowstone | 6/19/1928 | |
| 31195 | Rav-653 | OVERTURF | SIMON | W | M | 57 | Ravalli | 9/2/1925 | |
| 21941 | Bl 475 | OVESEN | BABY | F | -1 | Blaine | 12/5/1924 | ||
| 8359 | Hav 260 | OVESON | INFANT | M | -1 | Hill | 10/16/1921 | ||
| 4585 | Pow 82 | OVIDEO | ELISEO | M | 20 | Powell | 7/25/1920 | ||
| 3863 | MC 256 | OVITT | ELIZABETH | E | F | 66 | Custer | 6/7/1920 | |
| 44001 | Blgs 2062 | OVREN | MARY | F | 81 | Yellowstone | 1/27/1928 | ||
| 33786 | Cas 552 | OWEN | ADALINE | F | 84 | Cascade | 10/31/1926 | ||
| 19443 | La 2 | OWEN | ANCEL | E | M | 81 | Lake | 9/3/1923 | |
| 30503 | MC-850 | OWEN | ARTHUR | H | M | 6 | Custer | 6/14/1925 | |
| 18353 | Fltd 618 | OWEN | BESSIE | E | F | 39 | Flathead | 6/14/1923 | |
| 1879 | Fal 49 | OWEN | EDWIN | C | M | 11 | Fallon | 8/2/1920 | |
| 15414 | Rav 409 | OWEN | ELERY | R | M | 69 | Ravalli | 12/5/1922 | |
| 41344 | La 299 | OWEN | ELIZABETH | A | F | 74 | Lake | 1/28/1927 | |
| 5769 | Yel 140 | OWEN | EMILY | A | F | 76 | Yellowstone | 2/19/1920 | |
| 38980 | Bt 5116 | OWEN | ERNEST | M | 45 | Silver Bow | 4/22/1927 | ||
| 4365 | Musl 215 | OWEN | ESTER | F | 18 | Musselshell | 9/11/1920 | ||
| 47148 | La 474 | OWEN | GEO. | B | M | 52 | Lake | 10/28/1928 | |
| 7241 | Cho 251 | OWEN | JAMES | M | -1 | Choteau | 11/7/1921 | ||
| 25157 | MC 746 | OWEN | JOHN | E | M | -1 | Custer | 8/15/1924 | |
| 45761 | Fer 716 | OWEN | LAURENCE | S | M | 67 | Fergus | 5/4/1928 | |
| 44909 | Bt 6068 | OWEN | LEWIS | F | M | 20 | Silver Bow | 9/28/1928 | |
| 19105 | Hel 887 | OWEN | ROBERT | D | M | 84 | Lewis & Clark | 4/22/1923 | |
| 41172 | JB 140 | OWEN | VILLA | J | F | 58 | Judith Basin | 6/12/1927 | |
| 48128 | Musl 835 | OWEN | Wm. | W | M | 72 | Musselshell | 11/8/1928 | |
| 12499 | Dil 41 | OWENLY | EUGENE | R | M | -1 | Beaverhead | 10/28/1922 | |
| 8985 | Lstn 300 | OWENS | ALICE | Z | F | -1 | Fergus | 7/22/1921 | |
| 36704 | Pk 335 | OWENS | ALVIN | M | M | -1 | Park | 12/24/1926 | |
| 34380 | Fer 552 | OWENS | ANNIE | C | F | 33 | Fergus | 1/9/1926 | |
| 54906 | SB 2600 | OWENS | BRIDGET | A | F | 48 | Silver Bow | 4/6/1929 | |
| 9365 | Msla 316 | OWENS | CHAS | P | M | 7 | Missoula | 11/12/1921 | |
| 13519 | Gld 255 | OWENS | D. | H | F | -1 | Dawson | 11/26/1922 | |
| 48674 | Roos 797 | OWENS | DELLA | D | F | -1 | Roosevelt | 3/19/1928 | |
| 7316 | Daw 76 | OWENS | DOROTHY | F | -1 | Dawson | 2/6/1921 | ||
| 36450 | MslaC 1808 | OWENS | DR. ROBT | L | M | 41 | Missoula | 8/10/1926 | |
| 55422 | Val 868 | OWENS | ELEANOR | C | F | 8 | Valley | 8/15/1929 | |
| 12234 | Cas 230 | OWENS | GORDON | M | 29 | Cascade | 1/29/1922 | ||
| 27196 | Blgs-1403 | OWENS | INFANT | M | -1 | Yellowstone | 3/4/1925 | ||
| 29631 | Hel-1290 | OWENS | INFANT | M | 0 | Lewis & Clark | 6/14/1925 | ||
| 3756 | Mc 21 | OWENS | JAS | G | M | 9 | McCone | 3/1/1920 | |
| 22114 | Blgs 1301 | OWENS | JESSE | S | M | 60 | Yellowstone | 10/4/1924 | |
| 1695 | DL 194 | OWENS | JOHN | M | 62 | Deer Lodge | 2/4/1920 | ||
| 33411 | Bt 4647 | OWENS | MARYETTE | F | 80 | Silver Bow | 8/14/1926 | ||
| 9583 | MslaC 644 | OWENS | PETER | F | M | 65 | Missoula | 11/18/1921 | |
| 44075 | Blgs 2137 | OWENS | PHOEBE | F | 66 | Yellowstone | 5/6/1928 | ||
| 22032 | Blgs 1217 | OWENS | ROBERT | J | M | 56 | Yellowstone | 5/16/1924 | |
| 22406 | Bt 3111 | OWENS | ROBERT | R | M | 45 | Silver Bow | 3/6/1924 | |
| 28094 | Bt-4200_ | OWENS | ROBERT | M | 50 | Silver Bow | 12/18/1925 | ||
| 7566 | Fer 262 | OWENS | SHEPARD | M | 71 | Fergus | 8/26/1921 | ||
| 7936 | GF 832 | OWENS | THOMAS | J | M | 73 | Cascade | 5/13/1921 | |
| 50882 | Bt 6848 | OWENS | WM. | J | M | 45 | Silver Bow | 9/21/1929 | |
| 16857 | Blgs 946 | OWINGS | CORA | G | F | 54 | Yellowstone | 2/17/1923 | |
| 38708 | Boz 789 | OWINGS | INFANT | M | -1 | Gallatin | 6/20/1927 | ||
| 53980 | MslaC 2629 | OWINGS | MARY | L | F | 0 | Missoula | 10/8/1929 | |
| 34979 | Gla 573 | OWL CHILD | FRANK | M | 11 | Glacier | 4/8/1926 | ||
| 13432 | Gla 263 | OWL CHILD | GRACE | F | -1 | Glacier | 6/29/1922 | ||
| 52422 | Gla 881 | OWL CHILD | LOUIE | M | 34 | Glacier | 10/12/1929 | ||
| 13429 | Gla 260 | OWL CHILD | MOLLIE | F | 56 | Glacier | 6/15/1922 | ||
| 34181 | DL 1395 | OWL CHILD | WM | M | 31 | Deer Lodge | 4/20/1926 | ||
| 27101 | Bl-529 | OWL HEAD | M | 69 | Blaine | 7/31/1925 | |||
| 24441 | Hl 239 | OWL THUNDER | (none) | M | 72 | Hill | 5/26/1924 | aka THUNDER | |
| 12665 | DL 687 | OWNER | THOS. | M | 70 | Deer Lodge | 9/10/1922 | ||
| 42841 | Roos 741 | OWNS PIPE | WILLIAM | M | 13 | Roosevelt | 6/19/1927 | ||
| 48461 | Rbd 754 | OWSLEY | INF. OF DAN | ? | 0 | Rosebud | 2/3/1928 | ||
| 17218 | Bt 2598 | OWSLEY | LUCY | F | 55 | Silver Bow | 4/5/1923 | ||
| 35075 | Gra 273 | OWSLEY | ROBERT | L | M | 61 | Granite | 11/9/1926 | |
| 35077 | Gra 275 | OWSLEY | ROBERT | L | M | 61 | Granite | 11/9/1926 | |
| 47652 | MC 1154 | OXFORD | LEAH NAOMI | F | -1 | Custer | 6/21/1928 | ||
| 53756 | Msla 730 | OXFORD | LUCY | F | 33 | Missoula | 4/17/1929 | ||
| 45896 | Gal 616 | OYLER | GEO. | E | M | 84 | Gallatin | 11/12/1928 | |
| 15557 | RL 200 | OZANICH | JOSEPHINE | F | 49 | Carbon | 4/14/1922 | ||
| 44532 | Bt 5681 | OZANNE | JOHN | B | M | 17 | Silver Bow | 3/1/1928 | |
| 50494 | Bt 6460 | OZBURN | INF OF D.J. | M | 0 | Silver Bow | 3/27/1929 | INF OF | |
| 50896 | Bt 6862 | OZBURN | MRS.MAMIE | F | 26 | Silver Bow | 9/26/1929 |