| | Natasja Mariëtte Becker – | | | | | | | | Dirk Simon Slop 1905–1959 Anna Barbara van der Post 1914–1998 | | | | | | | | Dieuwertje de Boer 1847–1936 | | |
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| | | Hendrik van der Post 1855–1927 Adriana Jacoba Kampsteeg 1857–1884 |
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| | | Lourens Hindrik Reintjes 1892–1958 Jacoba Maria Grootendorst 1903–1982 |
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