1938 - 1968 (29 år)
| Nicholas Nels Mortenson 1963-2000 |
| Nicholas Nels Mortenson | |
| F: | 29 Mar 1963 |
| Britton, Marshall County, South Dakota, USA | |
| D: | 16 Jul 2000 |
| Bismark Township, Platte County, Nebraska, USA | |
| Melissa Sippel | |
| V: | 11 Sep 1999 |
| Brown County, South Dakota, USA | |
|
| Ervin Mortenson 1938-1968 |
| Ervin Mortenson | |
| F: | 31 Mar 1938 |
| Pierpont, Day County, South Dakota, USA | |
| D: | 5 Feb 1968 |
| Minneapolis, Hennepin County, Minnesota, USA | |
 | Betty Lou Martin 1943-2011 |
| Betty Lou Martin | |
| F: | 17 Dec 1943 |
| Groton, Brown County, South Dakota, USA | |
| V: | 26 Maj 1962 |
| Groton, Brown County, South Dakota, USA | |
| D: | 25 Jun 2011 |
| Aberdeen, Brown County, South Dakota, USA | |
