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 | Johannes Petrus van der Merwe (1780- ) |
 | Cornelia Christina de Wit(t) (1778-1820) |
| David Frederik van der Merwe (1805- )  |
| Cornelia Christina van der Merwe (1812-1836) |
| Sybrand Johannes van Dyk (1784-1843)
|
| Helena Susanna van der Merwe (1785- )
|
| Marthinus Johannes van Dyk (1807-1879) |
| Susanna Zacharia van Dyk (1809- ) |
| Zacharia Maria van Dyk, i (1811-1817) |
| Helena Johanna Francina van Dyk (1813-1891) |
| Joseph Andries Jacobus van Dyk (1815- ) |
| Zacharia Maria van Dyk, ii (1817-1858) |
| Anna Johanna van Dyk (1822-1861) |
| Frederik Philippus van der Merwe (1808- )
|
| Maria Magdalena Jacoba van Dyk (1819- )
|
