 | Jan Christiaan Bam van Dyk (1856- ) 
|
 | Elizabeth Anna Botha (1856-1945) |
| Judith Isabella Wilhelmina van Dyk (1877- )  |
| Johannes Jurgens van Dyk (1880- ) |
| Anna Elizabeth van Dyk (1883- ) |
| Jan Christiaan Bam van Dyk (1891-1958) |
| Abraham Jacobus Johannes van Dyk (1893-1975) |
| Johanna Catharina van Dyk (1895- ) |
| Theunis Gerhardus van Dyk (1890- )
|
| Theunis Gerhardus van Dyk (1913-1998) |
