| Partner | Date of Birth | Children |
|---|---|---|
Christina van der Vliet |
11-02-1909 | Sjoerd Evert Koster Frederik Carel Wilhelm Koster Johanna Alberta Koster Jan Evert Koster |
| Event Type | Date | Place | Description |
|---|---|---|---|
Birth |
24-05-1907 | Leeuwarden, Friesland, Nederland |
| Description |
|---|
Gezinskaart Frederik Carel Wilhelm Koster 1907 |