1919 - 1996 (76 år)
| Olga E Nelson 1919-1996 |
| Olga E Nelson | |
| F: | 23 Mar 1919 |
| D: | 1996 |
| Cresco, Howard county, Iowa USA | |
 | Olaf Gerhard Risdahl 1912-1956 |
| Olaf Gerhard Risdahl | |
| F: | 7 Jun 1912 |
| Fremont Township, Winneshiek County, Iowa | |
| V: | 14 Nov 1946 |
| Cresco, Howard county, Iowa USA | |
| D: | 15 Apr 1956 |
| Iowa City, Johnson County, Iowa, USA | |
