| | Trijntje Ruurds Douwenga 1855–1896 Pieter Hendriks Fokkens 1851–1910 | | |
| | Ruurd Andries Douwenga 1813–1875 Antje Jolles Boltjes 1825–1896 | | |
| | Janke Ruurds Zandstra 1782–1861 Andries Douwe Douwenga 1772–1848 | | |
| | Ruurd Durks Zandstra 1749–1826 Rinske Roels Hospes 1749–1820 | | |
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