1909 - 1939 (30 år)
| James Keith Flagtvedt Jondahl | |
| F: | 16 Dec 1938 |
| Marshall County, South Dakota, USA | |
| D: | 28 Jun 1987 |
| Hennepin County, Minnesota, USA | |
| Henry Conrad Flagtvedt Jondahl | |
| F: | 3 Maj 1940 |
| Britton, Marshall County, South Dakota, USA | |
| D: | 5 Aug 2016 |
| Rapid City, Pennington County, South Dakota, USA | |
|
| Henry Conrad Flagtvedt | |
| F: | 14 Sep 1909 |
| Langford, Marshall County, South Dakota, USA | |
| D: | 3 Nov 1939 |
| Marshall County, South Dakota, USA | |
| Alice Gurine Holland | |
| F: | 4 Jun 1920 |
| Marshall County, South Dakota, USA | |
| V: | 23 Nov 1937 |
| Marshall County, South Dakota, USA | |
| D: | 17 Apr 2013 |
| Aberdeen, Brown County, South Dakota, USA | |
