1880 - 1959 (79 jaar) | Harmke Kornelis Kooistra 1907-1995 |
| Harmke Kornelis Kooistra | |
| G: | 20 dec 1907 |
| Usquert, Usquert, Groningen, Netherlands | |
| O: | 9 mei 1995 |
| Winsum, Winsum, Groningen, Netherlands | |
 | Jan Bogema -1942 |
| Jan Bogema | |
| O: | Vr 1942 |
| Lubertus de Graaf 1899-1960 |
| Lubertus de Graaf | |
| G: | 6 mei 1899 |
| Rasquert, Baflo, Groningen, Netherlands | |
| H: | 12 sep 1942 |
| Usquert, Usquert, Groningen, Netherlands | |
| O: | 10 jul 1960 |
| Warffum, Warffum, Groningen, Netherlands | |
| Elizabeth Hilbrands Wiersema 1880-1959 |
| Elizabeth Hilbrands Wiersema | |
| G: | 10 mei 1880 |
| Usquert, Usquert, Groningen, Netherlands | |
| O: | 11 aug 1959 |
| Usquert, Usquert, Groningen, Netherlands | |
| Kornelis Libbes Kooistra 1872-1973 |
| Kornelis Libbes Kooistra | |
| G: | 20 nov 1872 |
| Tolbert, Leek, Groningen, Netherlands | |
| O: | 25 apr 1973 |
Klein Verleden - Gegevens onderhouden door Erik.
