1907 - 1971 (64 år)
 | Jon Marie Nygaard 1944-2003 |
| Jon Marie Nygaard | |
| F: | 20 Jun 1944 |
| Webster, Day County, South Dakota, USA | |
| D: | 4 Mar 2003 |
| Cottage Grove, Washington County, Minnesota, USA | |
 | Yvonne Kay Nygaard 1939-2002 |
| Yvonne Kay Nygaard | |
| F: | 19 Okt 1939 |
| Pierpont, Day County, South Dakota, USA | |
| D: | 7 Jul 2002 |
| Great Falls, Cascade County, Montana, USA | |
|
| Harvey Oscar Nygaard 1907-1971 |
| Harvey Oscar Nygaard | |
| F: | 13 Okt 1907 |
| Crosby, Divide County, North Dakota, USA | |
| D: | 13 Okt 1971 |
| Roslyn, Day County, South Dakota, USA | |
