 | Joseph Sybrand van Dyk (1877-1939) 
|
 | Rachel Sophia Elizabeth Jacoba Eloff (1878-1926)
|
| Joseph Sybrand van Dyk (1897-1974)  |
| Catharina Dorothea van Dyk (1899-1983) |
| Fanny Elizabeth Catharina Jacoba van Dyk (1901-1948) |
| Rachel Cornelia van Dyk (1906-1977) |
| Philippus Arnoldus Myburgh van Dyk (1908-1958) |
| Elizabeth Jane Pringle van Dyk (1913-1939) |
| Martha Magdalena du Preez (1922-1999) |
| Johannes Lodewyk Eloff van Dyk (1916-1971)
|
| Joseph Sybrandt van Dyk (1940- ) |
