| Father | Date of Birth | Mother | Date of Birth |
|---|---|---|---|
Evert van der Vliet |
19-01-1876 | Jannigje den Adel |
11-09-1875 |
| Partner | Date of Birth | Children |
|---|---|---|
Frederik Carel Wilhelm Koster |
24-05-1907 | Sjoerd Evert Koster Frederik Carel Wilhelm Koster Johanna Alberta Koster Jan Evert Koster |
| Event Type | Date | Place | Description |
|---|---|---|---|
Birth |
11-02-1909 | 's-Gravenhage, Zuid-Holland, Nederland |