1898 - 1967 (69 år)
| Gretchen Mortvedt | |
| F: | 27 Jul 1963 |
| Canton, Fulton County, Illinois, USA | |
| D: | 27 Jul 1963 |
| Canton, Fulton County, Illinois, USA | |
| Donald Mortvedt | |
| F: | 2 Dec 1932 |
| Berwyn, Cook County, Illinois, USA | |
| D: | 21 Dec 1999 |
| Marble Falls, Burnet County, Texas, USA | |
| Marjorie Lee Myers | |
| F: | 20 Nov 1930 |
| Bethel Wyandotte County, Kansas, USA | |
| D: | 15 Sep 1989 |
| League City, Galveston County, Texas, USA | |
|
| Harold Melanchton Mortvedt | |
| F: | 8 Feb 1898 |
| Dell Rapids, Minnehaha County, South Dakota, USA | |
| D: | 26 Feb 1967 |
| La Grange, Cook County, Illinois, USA | |
| Ethel Maretta Forbes | |
| F: | 20 Nov 1898 |
| St Louis County, Missouri, USA | |
| V: | 1925 |
| D: | 13 Nov 1981 |
