| | Petronella Sprinkhuisen – | | | | Gosse Idzes Bierma 1914–2011 Johanna Hillegonda Zeeman 1911–1944 | | | | Maaike Groenewoud 1893–1985 | | | | Gosse Idzes Bierma 1863–1931 Johanna Jans Jensma 1866–1889 | | | | Ids Watzes Bierma 1839–1910 Trijntje Gosses Jensma 1840–1915 | | |
| | | Jan Kornelis Jensma 1841–1927 Sjoukje Klazes Ypey 1848–1874 Renske Gerrits Postma 1847–1884 | | |
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