1914 - 1990 (75 år)
| Walter Ferdinand Halvorson 1914-1990 |
| Walter Ferdinand Halvorson | |
| F: | 19 Mar 1914 |
| Otter Tail County, Minnesota, USA | |
| D: | 12 Feb 1990 |
| Fergus Falls, Otter Tail County, Minnesota, USA | |
 | Myrtle Adeline Christianson 1913-1981 |
| Myrtle Adeline Christianson | |
| F: | 18 Jun 1913 |
| Vining, Otter Tail County, Minnesota, USA | |
| D: | 8 Maj 1981 |
| Vining, Otter Tail County, Minnesota, USA | |
