1929 - 2014 (84 år)
 | Ronald Mark Olson 1963-2020 |
| Ronald Mark Olson | |
| F: | 9 Aug 1963 |
| Webster, Day County, South Dakota, USA | |
| D: | 9 Jan 2020 |
| Watertown, Codington County, South Dakota, USA | |
|
| Mildred Aileen Erickson 1929-2014 |
| Mildred Aileen Erickson | |
| F: | 26 Maj 1929 |
| Spain, Marshall County, South Dakota, USA | |
| D: | 14 Apr 2014 |
| Aberdeen, Brown County, South Dakota, USA | |
 | Maurice Alan Olson 1926-2004 |
| Maurice Alan Olson | |
| F: | 8 Apr 1926 |
| Homer Township, Day County, South Dakota, USA | |
| D: | 11 Nov 2004 |
| Webster, Day County, South Dakota, USA | |
