| Henri Willem Isaäc de Vrijer | |
| G: | 11 mei 1909 |
| Odijk | |
1910-
| Jan de Vrijer | |
| G: | 27 okt 1910 |
| Rotterdam | |
1912-
| Dina Jeanne de Vrijer | |
| G: | 11 jun 1912 |
| Utrecht | |
1910-1988
| Pier Eringa | |
| G: | 21 mrt 1910 |
| Rotterdam | |
| H: | 28 aug 1941 |
| Utrecht | |
| O: | 21 jan 1988 |
| Heemstede | |
|
| Prof.dr. Marinus Johannes Antonie de Vrijer | |
| G: | 4 aug 1881 |
| Rotterdam | |
| O: | 14 mei 1969 |
-1944
| Maria Jeanne Struijs | |
| G: | Amsterdam |
| H: | 13 sep 1906 |
| Amsterdam | |
| O: | 7 apr 1944 |
| Utrecht | |