1891 - 1973 (81 år)
| Wilbur Leroy Olson | |
| F: | 8 Jan 1917 |
| Hancock County, Iowa, USA | |
| D: | 27 Nov 2007 |
| Mason City, Cerro Gordo, Iowa, USA | |
| Glaydys Lois Hope | |
| F: | 9 Okt 1916 |
| Story City, Story County, Iowa, USA | |
| V: | 23 Okt 1937 |
| Trenton, Grundy County, Missouri, USA | |
| D: | 27 Feb 2016 |
| Britt, Hancock County, Iowa, USA | |
| Clara Larson | |
| F: | 7 Jun 1891 |
| Ellington Township, Hancock County, Iowa, USA | |
| D: | Mar 1973 |
| Forest City, Winnebago County, Iowa, USA | |
| Lewis Louis Nelson Olson* | |
| F: | 4 Jan 1879 |
| Forest City, Winnebago County, Iowa, USA | |
| V: | 7 Jun 1914 |
| Cerro Gordo County, Iowa, USA | |
| D: | 11 Dec 1943 |
| Rural Forest City, Hancock, Iowa, USA | |
