 | Johannes Hendrik van Dyk (1896-1975) 
|
 | Maria Susanna Viljoen (1898-1979)
|
| Marthinus Johannes van Dyk (1919-1953)  |
| Wilhelmina Gertruida Jacoba van Dyk (1921-2007) |
| Diederik Arnoldus van Dyk (1924-1996) |
| Sybrand van Dyk (1926-1993) |
| Cornelia Elizabeth van Dyk (1928- ) |
| Maria Susanna van Dyk (1930- ) |
| Anna Helena Sophia van Dyk (1931- ) |
| Floris Johannes van Dyk (1933-2007) |
| Johannes Hendrik van Dyk (1923-1991)
|
| Hester Elizabeth Smit (1933-2018) |
