| | Gijsbert Heijnekamp 1933–2016 Cornelia Petronella Landzaat 1934–2013 | | | | Gijsbert Heijnekamp 1892–1980 | | | | Johannes Marinus Heijnekamp 1864–1903 Katharina Elisabeth Lith 1870–1935 | | |
| | | Wilhelmina Lobbezoo 1875–1943 | | |
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| | | Maria Hoogenboom 1898–1967 | | | | Frans Gerardus Landzaat 1860–1920 Cornelia Petronella Herber 1860–1937 | | |
| | | Arie Hoogenboom 1861–1928 Hillegonda Roelofs 1863–1931 | | |
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