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 | Willem Douw Gerbrand van Dyk (1880-1947)
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 | Anna Dorothea Viljoen (1876-1938)
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| Francois Petrus van Dyk (1910-1985)  |
| Cornelia Christina van Dyk (1912-1971) |
| Philippus Cristoffel Piek (1894- ) |
| Aletta Johanna Catharina Ras (1900- ) |
| Barend Jacobus Josef van Dyk (1907-1968)
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| Susanna Johanna Maria Piek (1920- )
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| Willem Douw Gerbrand van Dyk (1938-2002) |
| Philippus Christoffel van Dyk (1944-1997) |
| Barend Jacobus Josef van Dyk (1958- ) |
