| | Everhardus Hendricus "Eef" Derksen 1915–1987 Theodora Johanna "Annie" Polman 1917–1997 | | | | Johannes "Jan" Derksen 1870–1952 Everdiena Maria "Dien" Hermsen 1877–1953 | | | | Johannes "Jan" Derksen 1831–1902 | | |
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| | | Gerardus "Gradus" Polman 1883–1971 Theodora Johanna "Anna" Janssen 1884–1942 | | | | Johannes "Jan" Polman 1837–1908 | | |
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