 | Sybrand Barend Jacobus van Dyk (1861- ) 
|
 | Susara Susanna Margaretha Bosman (1868- )
|
| Joseph van Dyk (1885-1949)  |
| Catharina Maria Francina Cecilia van Dyk (1887-1977) |
 | Martha Magdalena van Dyk (1889-1979) |
| Francois Petrus Bosman van Dyk (1890-1932) |
| Sybrand Barend Jacobus van Dyk (1892-1934) |
| Johannes Hendrik Hattingh van Dyk (1894-1930) |
| Sarah Susanna Margaretha van Dyk (1896-1900) |
| Gerbrecht van Dyk (1900- ) |
| Cornelius Jacobus van Dyk (1902-1978) |
| Hermanus Stephanus van Dyk (1905-1967) |
| Susanna Frederika Oberholzer (1908-1980) |
| Christiaan Hendrik Stephanus van Dyk (1898-1962)
|
 | Sybrand Barend van Dyk (1928-2007) |
| Anna Christina van Dyk (1929-1973) |
| Johannes Jacobus van Dyk (1931- ) |
