
| Derwin Fredrick Halvorson | |
| B: | 29 Jan 1920 |
| Polson, Lake County, Montana, USA | |
| D: | 2 May 2005 |
| Missoula, Missoula County, Montana, USA | |
| Gladys Louise Halvorson (nee Dedrickson) | |
| B: | 15 Apr 1919 |
| Bozeman, Montana, USA | |
| M: | 5 Jun 1941 |
| Missoula, Montana, USA | |
| D: | 24 Sep 2003 |
| Hot Springs, Sanders County, Montana, United States of America | |
| Louis Duncan Halvorson | |
| B: | 18 Oct 1917 |
| D: | 4 Jan 1987 |
| Elanor Beatrice Christiansen | |
| B: | 4 May 1917 |
| M: | 8 Nov 1947 |
| Missoula, Montana, USA | |
| Louis Duncan Halvorson | |
| B: | 24 Jul 1939 |
| St. Ignatius, Lake, Montana, USA | |
| Emily May Halvorson | |
| B: | 1942 |
| Gerilyn Halvorson | |
| B: | 1944 |
| Mary Pauline Halvorson (nee Reinertson) | |
| M: | 9 Jan 1938 |
| Hot Springs, Missoula, Montana, USA | |
| Fred Halvorson | |
| B: | 1889 |
| D: | 1 Aug 1964 |
| Nora Halvorson (nee MacDonald) | |
| B: | 1897 |
| D: | 4 Dec 1991 |