 | William van Dyk (1871-1960) 
|
 | Ida Catherine Andrews ( -1961) |
 | William van Dyk (1908-1988)  |
| Harold van Dyk (1911-1977) |
| Jessie van Dyk (1913-1964) |
| David Daniël van Dyk (1916-1972) |
| Herbert George van Dyk (1923- ) |
| Cecil Richard van Dyk (1924-1983) |
| James John van Dyk (1907-1988)
|
| Dorothea Wilhelmina Catharina Botes (1923-2005) |
