1890-1972
| Petronella van Beekum | |
| G: | 10 jun 1890 |
| Rotterdam | |
| O: | 23 jan 1972 |
| Den Haag | |
1892-1978
| Dirk Willem van Beekum | |
| G: | 28 feb 1892 |
| Rotterdam | |
| O: | 28 aug 1978 |
| Gendringen | |
| Cornelia Louisa Maria Groenhorst | |
| H: | 28 jul 1921 |
| Rotterdam | |
1867-
| Hillegonda Waalwijk | |
| G: | 8 feb 1867 |
| Rotterdam | |
| H: | 27 feb 1889 |
| Rotterdam | |