| Willem Cornelis Alexander van Beek |
| Willem Cornelis Alexander van Beek | |
| B: | 7 Apr 1901 |
| Rotterdam | |
| D: | 10 Oct 1981 |
| 's-Hertogenbosch | |
| Zelamire Caroline Martherus |
| Zelamire Caroline Martherus | |
| B: | 20 Aug 1903 |
| Bandoeng, Java, DEI | |
| M: | 24 Sep 1925 |
| Magelang, Java, DEI | |
| D: | 2 Feb 1997 |
| Den Haag, Zuid-Holland, The Netherlands | |
| Johanna Jacoba Henriette DEDEREN |
| Johanna Jacoba Henriette DEDEREN | |
| B: | 1 Mar 1911 |
| Oss, Noord Brabant, The Netherlands | |
| M: | 24 May 1949 |
| Medan | |
| D: | 19 Oct 1989 |
| Eindhoven, North Brabant, The Netherlands | |