| | Pieter (Piet) Herman Hendrik August Onstenk 1898–1973 Gerharda Hendrina Lens 1901–1985 | | | | Pieter Hendrik Herman August Onstenk 1860–1931 Elisabeth Helversteijn 1857–1908 Theresia Maria Maurer 1869–1940 | | | | Hendrik Valentijn Onstenk 1829–1908 Hillegonda Swildens 1834–1902 | | |
| | | Johannes Wilhelmus Helversteijn 1825–1891 Elisabeth van den Heuvel 1834–1905 | | |
| | | Maria Theresia Bechel 1839– | | |
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| | | Hendrik Daniël Lens 1868–1906 Augustina Catharina van der Upwick 1868–1940 | | | | Adriana Hendrina Schuller 1825–1894 |
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