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 | Johannes Arnoldus van Dyk (1910-1998)
|
 | Catharina Magdalena Opperman (1915-2002) |
| Hercules Johannes Petrus van Dyk, i (1941- ) |
| Johannes Arnoldus van Dyk (1945-2014)  |
| Hercules Johannes Petrus van Dyk, ii (1947-1965) |
| Elizabeth Maria van Dyk (1939-1968)
|
