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 | Johannes Hendrik van Dyk (1900-1942)
|
 | Petronella Jacoba Louw (1901- )
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| Johannes Hendrik van Dyk (1920-1985)  |
| Hendrik Johannes Jacobus van Dyk (1922-1923) |
| Dr. Hendrik Johannes Jacobus Louw van Dyk (1927-1972)
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| Louisa Helena Botha (1927-2011) |
