 | Joseph Johannes van Dyk (1857-1920) 
|
 | Aletta Johanna van Dyk (1887-1920)  |
| Willem Abraham van Dyk (1888-1947) |
| Johanna Cecilia van Dyk (1890- ) |
| Aletta Francina van Dyk (1895- ) |
| Joseph Johannes van Dyk (1896-1954) |
| Maria Magdalena van Dyk (1904- ) |
| Wilhelmina van Dyk (1907- ) |
| Petrus Joubert van Dyk (1900-1968)
|
| Anna Catharina Janeke (1911-1996)
|
| Martha Johanna van Dyk (1939-1980) |
| Aletta Francina van Dyk (1946- ) |
