1896 - 1957 (60 år)
 | Dennis Sylvester Mortenson 1921-1991 |
| Dennis Sylvester Mortenson | |
| F: | 29 Okt 1921 |
| Granite Falls, Yellow Medicine County, Minnesota, USA | |
| D: | 24 Jul 1991 |
 | Elsie Victoria Grove 1919-1997 |
| Elsie Victoria Grove | |
| F: | 13 Nov 1919 |
| Renville County, Minnesota, USA | |
| D: | 9 Sep 1997 |
| Woodbury, Washington County, Minnesota, USA | |
 | Ronald Alan Mortenson 1946-2014 |
| Ronald Alan Mortenson | |
| F: | 1 Dec 1946 |
| Marshall, Lyon County, Minnesota, USA | |
| D: | 26 Dec 2014 |
| Coon Rapids, Anoka County, Minnesota, USA | |
 | Marvin Jerome Mortenson 1919-1981 |
| Marvin Jerome Mortenson | |
| F: | 21 Dec 1919 |
| Yellow Medicine County, Minnesota, USA | |
| D: | 9 Mar 1981 |
| Olmsted County, Minnesota, USA | |
 | Ruth Naomi Torgerson 1914-1973 |
| Ruth Naomi Torgerson | |
| F: | 26 Jan 1914 |
| Granite Falls, Yellow Medicine County, Minnesota, USA | |
| D: | 21 Jul 1973 |
| Cottonwood County, Minnesota, USA | |
 | Obert Luverne Mortenson 1926-1969 |
| Obert Luverne Mortenson | |
| F: | 21 Aug 1926 |
| Glenwood, Pope County, Minnesota, USA | |
| D: | 2 Aug 1969 |
| Granite Falls, Yellow Medicine County, Minnesota, USA | |
 | Eunice Louise Veden 1925-1977 |
| Eunice Louise Veden | |
| F: | 24 Jun 1925 |
| Palmer, Pocahontas County, Iowa, USA | |
| D: | 26 Aug 1977 |
| Granite Falls, Yellow Medicine County, Minnesota, USA | |
 | Thurman LeRoy Mortenson 1923-1995 |
| Thurman LeRoy Mortenson | |
| F: | 21 Okt 1923 |
| Yellow Medicine County, Minnesota, USA | |
| D: | 27 Jul 1995 |
| Yellow Medicine County, Minnesota, USA | |
|
| Lewis Oscar Mortenson 1896-1957 |
| Lewis Oscar Mortenson | |
| F: | 13 Mar 1896 |
| Veblen, Marshall County, South Dakota, USA | |
| D: | 16 Feb 1957 |
| Yellow Medicine County, Minnesota, USA | |
 | Hulda Jacobson 1898-1975 |
| Hulda Jacobson | |
| F: | 11 Mar 1898 |
| Stony Run Township, Yellow Medicine County, Minnesota, USA | |
| D: | 13 Dec 1975 |
| Granite Falls, Yellow Medicine County, Minnesota, USA | |
