| Gerrebrand Hendrik Ketz |
| Gerrebrand Hendrik Ketz | |
| G: | 29 sep 1938 |
| Rotterdam | |
| O: | 28 sep 1946 |
| Rotterdam | |
| Dirk Bernardus Ketz |
| Dirk Bernardus Ketz | |
| G: | 12 jan 1940 |
| Rotterdam | |
| O: | 28 mrt 1940 |
| Rotterdam | |
| Anna Koster |
| Anna Koster | |
| G: | 27 mei 1916 |
| Rotterdam | |
| O: | 29 jul 1994 |
| Rotterdam | |
| Dirk Bernardus Ketz |
| Dirk Bernardus Ketz | |
| G: | 12 mei 1913 |
| Rotterdam | |
| H: | ca. 1952 |
| O: | 1 nov 1982 |
| Rotterdam | |