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 | Willem Johannes Stephanus van Dyk (1882-1939)
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 | Magdalena Catharina Opperman (1900-1978) |
| Maria Christina van Dyk (1921- )  |
| Johanna Dorothea van Dyk (1925-2001) |
| Alfonso Joseph van Dyk (1936-1987)
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| Mavis Engela Morgan (1943- ) |
