| Willem Martinus Johannes Hendrikus Ipenburg | |
| G: | 1913 |
| Amsterdam | |
| C.A.H. Roeland | |
| H: | 1938 |
| Bernardus Gijsbert Ipenburg | |
| G: | 1915 |
| Zaandijk | |
1876-1934
| Willem Ipenburg | |
| G: | 1876 |
| Uitgeest | |
| O: | 1934 |
| Haarlem | |
1893-1959
| Bernadina Johanna Klopper | |
| G: | 1893 |
| Amsterdam | |
| H: | 1914 |
| Uitgeest | |
| O: | 1959 |
| Haarlem | |