 | Richard James van Dyk, (European) (1895-1960) 
|
 | Henriëtta Isabella Bell (1911-1978) |
| Quentin Owen van Dyk (1930- ) |
| Randal Osmund van Dyk (1932-1975)  |
| Roger Augustin van Dyk (1937-1992) |
| Llewellyn Athelstane van Dyk, (British- mixed) (1933-2003)
|
| Hazel Jean Dennis (1937- ) |
| Courtley Paul van Dyk ( -2004) |
| Cheryl Heather van Dyk (1956-2002) |
