 | Joseph Johannes van Dyk (1857-1920) 
|
 | Aletta Johanna van Dyk (1887-1920)  |
| Johanna Cecilia van Dyk (1890- ) |
| Aletta Francina van Dyk (1895- ) |
| Joseph Johannes van Dyk (1896-1954) |
| Petrus Joubert van Dyk (1900-1968) |
| Maria Magdalena van Dyk (1904- ) |
| Wilhelmina van Dyk (1907- ) |
| Willem Abraham van Dyk (1888-1947)
|
| Aletta Elizabeth du Preez (1906-1948) |
| Aletta Francina van Dyk (1925- ) |
