Hendrik Jan Koekoek 1916–1986 | | |
Dieuwerke Koekoek 1917–1992 | | |
| | Elizabeth Bultema 1890–1975 | | |
| | Dieta Christina Bultema 1925–2013 | | |
| | Jakob Harm Bultema 1929–1999 | | |
| | Cornelia Alkema 1896–1983 | | |
| | Dieuwerke Voogd 1864–1945 | | | | Harm Harms Bultema 1835–1903 Geertje de Wilde 1830–1866 Elisabeth Denhof 1837–1921 | | | | Harm Jans Bultena 1801–1865 Zwaantje Jakobs Bouwkamp 1801–1883 | | | | Jan Harms Bultena 1776–1847 Dieuwerke Cornelis 1772–1826 Liesbeth Harms Heethuis 1788–1844 | | | | Harm Jacobs (Bultena) 1735–1782 | | |
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