 | Jan Johannes Wilhelmus van Dyk (1873-1910) 
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 | Helena Johanna Jacoba Nel (1876-1950)
|
| Andries Burgert Sybrand van Dyk (1900- ) |
| Dorothea Maria van Dyk (1901-1951)  |
| Emmerentia Johanna Frederika van Dyk (1902-1976) |
| Elizabeth Susanna van Dyk (1906- ) |
| Gertruida Johanna Cornelia van Dyk (1908-1918) |
| Martha Cornelia Jacomina Geyer (1915-2007) |
| Willem Adriaan Jan Johannes van Dyk (1910-1967)
|
| Jan Johannes Wilhelm van Dyk (1938-2007) |
