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 | Lukas Ignatius van Dyk (1890- )
|
 | Gertruida Catharina Crafford (1897- ) |
| Anna Maria Magdalena Pieternella van Dyk (1925-2001)  |
| Francina Elizabeth van Dyk (1934-2003) |
| Sybrand Johannes van Dyk (1922-1986)
|
| Susanna Magtild Susara Heymans (1933-2005) |
| Sybrand Johannes van Dyk (1962-2008) |
