USA > Montana > Fallon County > 1940 Census of O'Donnell
| A Surnames | B Surnames | C Surnames | F Surnames | H Surnames | K Surnames | L Surnames | M Surnames | N Surnames | O Surnames | S Surnames |
| Amos | Alice F | born about 1923 |
| Amos | Gladius E | born about 1925 |
| Amos | Ina B | born about 1903 |
| Amos | Oakes K | born about 1933 |
| Amos | Oliver F | born about 1895 |
| Beck | Thomas L | born about 1920 |
| Crawford | Bertha | born about 1897 |
| Crawford | Gus | born about 1888 |
| Flo | Sigurd J | born about 1893 |
| Halmans | Anna M | born about 1882 |
| Halmans | George S | born about 1923 |
| Halmans | Hubertus V | born about 1921 |
| Halmans | John H | born about 1883 |
| Koenig | Arnold F | born about 1922 |
| Koenig | Arthur R | born about 1925 |
| Koenig | Edward | born about 1882 |
| Koenig | Erna M | born about 1920 |
| Koenig | Howard C | born about 1931 |
| Koenig | Pauline B | born about 1894 |
| Koenig | William H | born about 1928 |
| Lee | Josephine C | born about 1922 |
| Luther | John | born about 1907 |
| Luther | Mary Ann | born about 1912 |
| Madler | Adolph | born about 1911 |
| Madler | Jane Louise | born about 1930 |
| Madler | Pauline M | born about 1919 |
| Madler | Raymond G | born about 1921 |
| Madler | Tessie A | born about 1927 |
| Norman | Bessie J | born about 1928 |
| Norman | Ingwald B | born about 1897 |
| Norman | Olive P | born about 1903 |
| Norman | Terrel N | born about 1930 |
| Odonnell | Carolyn E | born about 1891 |
| Odonnell | Elizabeth J | born about 1936 |
| Odonnell | Francis E | born about 1926 |
| Odonnell | Helbert D | born about 1931 |
| Odonnell | James | born about 1875 |
| Odonnell | Margret L | born about 1929 |
| Odonnell | Michael | born about 1882 |
| Odonnell | Raymond R | born about 1922 |
| Shine | Peter W | born about 1919 |
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