| Jacob VALK (1851 - 1903) |
|
| Engelina COHEN (1848 - 1908) |
| Willem VAN DER GROOT | Roosje Jetta VALK |
| b. 5 Feb 1890 d. 19 Aug 1973, Leeuwarden, Friesland, Netherlands bur. rel. hob. occ. |
b. 17 May 1891, Wildervank, Veendam, Groningen, Netherlands d. 15 Oct 1942, Auschwitz, Malopolskie, Poland bur. rel. hob. occ. |
| Spouses: 1, 2 |
| Engelina VAN DER GROOT |