1916 - 1994 (78 år)
 | Marvin Wayne Halvorson 1940-2015 |
| Marvin Wayne Halvorson | |
| F: | 30 Nov 1940 |
| Iowa County, Iowa, USA | |
| D: | 10 Sep 2015 |
| Conroy, Iowa County, Iowa, USA | |
|
| Norma Amelia Helgeson 1916-1994 |
| Norma Amelia Helgeson | |
| F: | 17 Maj 1916 |
| Marengo, Iowa County, Iowa, USA | |
| D: | 18 Okt 1994 |
| Iowa City, Johnson County, Iowa, USA | |
| Milford Harold Halvorson 1912-1997 |
| Milford Harold Halvorson | |
| F: | 16 Apr 1912 |
| Iowa County, Iowa, USA | |
| V: | 27 Feb 1937 |
| Norway, Benton County, Iowa, USA | |
| D: | 14 Jan 1997 |
| Iowa City, Johnson County, Iowa, USA | |
