1916 - 1998 (82 år)
| Robert Englebert Olson | |
| F: | 16 Sep 1916 |
| Marengo, Iowa County, Iowa, USA | |
| D: | 17 Nov 1998 |
| Oklahoma City, Oklahoma County, Oklahoma, USA | |
| Ruth Marie Olson | |
| F: | 14 Jan 1916 |
| Norway, Benton County, Iowa, USA | |
| V: | 3 Jul 1943 |
| Iowa, USA | |
| D: | 1 Maj 2005 |
| Iowa, USA | |
