1940 - 2017 (77 år)
| James Allen Olson 1940-2017 |
| James Allen Olson | |
| F: | 9 Jan 1940 |
| Jewel, Hamilton County, Iowa, USA | |
| D: | 13 Mar 2017 |
| Ames, Story County, Iowa, USA | |
 | Joan Karen Tysdahl 1941-2004 |
| Joan Karen Tysdahl | |
| F: | 24 Sep 1941 |
| Eldora, Hardin County, Iowa, USA | |
| D: | 19 Okt 2004 |
| Ames, Story County, Iowa, USA | |
