 | Joseph Johannes van Dyk (1821-1850) 
|
 | Hester Christina Bender (1825-1851)
|
| John George van Dyk (1845-1888)  |
| William Devenish (1810- ) |
| Sara Juliana Sieberhagen (1806- ) |
| Joseph Daniël van Dyk (1843-1927)
|
| Anna Juliana Devenish (1840-1921)
|
| Sara Juliana Sieberhagen van Dyk (1864-1945) |
| Emma Cornelia van Dyk (1865- ) |
| Hester Christina van Dyk (1867-1928) |
 | Joseph Louis van Dyk (1869-1934) |
 | William van Dyk (1871-1960) |
| Hellen Marcella van Dyk (1873- ) |
| John Sweet van Dyk (1876-1947) |
| Anna Juliana Sieberhagen van Dyk (1879- ) |
| Juliana Zitsecorn van Dyk (1883- ) |
| Marianne Elizabeth van Dyk (1885- ) |
