| | Cornelis Egbertus "Cees" Beck 1953–2001 | | |
| | | | | | Jacobus Nicolaas Beck 1897–1963 Helena Alberta Houkes 1896–1963 | | | | Johannes "Jan" Houkes 1872–1957 Willemina Straatman 1873–1957 | | | | Gerardus Straatman 1830–1904 Alberta Johanna Maria Buhnen 1835–1897 | | | | Cornelis Straatman 1787–1863 Hendrina Verwaaijen 1791–1843 | | |
| | | Theodorus Buhnen 1802–1874 Joanna van Benthem 1798–1867 | | |
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