1900 - 1968 (67 år)
 | Paul* Donald Ylvisaker 1926-2002 |
| Paul* Donald Ylvisaker | |
| F: | 21 Maj 1926 |
| Houston, Houston County, Minnesota, USA | |
| D: | 24 Nov 2002 |
| Portland, Multnomah County, Oregon, USA | |
|
| Walther* Olaf Ylvisaker 1900-1968 |
| Walther* Olaf Ylvisaker | |
| F: | 6 Apr 1900 |
| Hayfield Township, Dodge County, Minnesota, USA | |
| D: | 9 Jan 1968 |
| Everett, Snohomish County, Washington, USA | |
 | Louella M Iverson 1901-1998 |
| Louella M Iverson | |
| F: | 4 Sep 1901 |
| Decorah, Winneshiek County, Iowa, USA | |
| V: | 1924 |
| D: | 30 Aug 1998 |
| Seattle, King County, Washington, USA | |
