
| Sherman Percy Koopal | |
| G: | 24 okt 1939 |
| South-Dakota, Amerika | |
| O: | 6 aug 2020 |
| Robert J. Koopal | |
| G: | 1 feb 1943 |
| Platte, Charles Mix, South Dakota, Amerika | |
| O: | 29 sep 2017 |
| Atlanta, Georgia, Amerika | |
| Cecil Jay Koopal | |
| G: | 21 jul 1950 |
| Platte, Charles Mix, South Dakota, Amerika | |
| O: | 14 jul 2003 |
| Charles Mix, South Dakota, Amerika | |
|
| Marten Koopal | |
| G: | 2 mei 1910 |
| Het Bildt | |
| O: | 28 jun 1998 |
| Platte, Charles Mix, South Dakota, Amerika | |
| Elizabeth Keegel | |
| G: | 13 apr 1915 |
| Charles Mix, South Dakota, Amerika | |
| O: | 13 sep 2000 |
| Platte, Charles Mix, South Dakota, Amerika | |