| | Gerardus Wilhelmus Mahler 1884–1941 Johanna Geertruida Alofs 1890–1959 | | | | Antoon Frederik Mahler 1845–1920 Theodora van Beek 1846–1919 | | | | Matthijs Mahler 1787–1860 Theodora Janssen 1812–1857 | | |
| | | Gerardus van Beek 1824–1898 Hendrina Teunissen 1824–1894 | | |
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| | | Theodorus Alofs 1848–1930 Johanna Geertruida Holland 1856–1920 | | | | Wilhelmus Alofs 1799–1890 Richarda Driessen 1810–1881 | | |
| | | Hendrina van Kempen 1826– | | |
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