| Helena Louisa Rem | |
| G: | 29 nov 1916 |
| Amsterdam | |
| O: | 31 okt 1991 |
| Amsterdam | |
-1943
| Herman Wagenmakers | |
| O: | feb 1943 |
| Bauke Ketz | |
| G: | 22 dec 1949 |
| Amsterdam | |
| O: | 13 apr 2013 |
| Vledderveen | |
| Willem Carel Ketz | |
| G: | 7 okt 1907 |
| Deventer | |
| H: | 31 mei 1949 |
| Amsterdam | |
| O: | 13 sep 1989 |
| Amsterdam | |