 | Sybrand Jacobus van Dyk (1825-1902) 
|
 | Engela Herculina Hendrina Buitendag (1826-1904)
|
| Joseph Johannes van Dyk (1846-1909)  |
| Gert Jacobus van Dyk (1848-1932) |
| Willem Abraham van Dyk (1851-1906) |
| Elizabeth Catharina Johanna van Dyk (1854-1890) |
| Sybrand Jacobus van Dyk (1859-1915) |
| Margaretha Johanna van Dyk (1862- ) |
| Engela Carolina Susanna Hendrina van Dyk (1866-1941) |
| Louisa Johanna van Dyk (1859- )
|
| Jan Daniel Jacobus Havenga (1853- ) |
