 | Johannes Frans Karel van Dyk (1893-1965) 
|
 | Catharina Susanna Jacoba Swart (1894-1955)
|
 | Margaretha Johanna Wilhelmina van Dyk (1921-1988) |
 | Catharina Susanna Jacoba van Dyk (1925-1992)  |
 | Coenraad Johannes van Dyk (1929-2004) |
 | Elizabeth Maria van Dyk (1934-2003) |
 | Sybrand Moolman van Dyk (1938-2011) |
 | Susara Johanna van Dyk (1923- )
|
 | Barend Swart Wessels (1923- ) |
