| | Trijntje Jans Smedema 1874–1897 | | |
| | Aaltje Johannes Sekema 1836–1896 Jan Geerts Smedema 1834–1912 | | |
| | Saap Ulbes Buwalda 1799–1861 Johannes Jans Sekema 1798–1881 | | |
| | Ulbe Jans Buwalda 1760–1812 | | | | | | | | Ulbe Abrahams Buwalda 1672– | | | | Abraham Ulbes Buwalda 1635– | | | | Ulbe Tiaerts Buwalda 1610–1657 Tryncke Pybes Nijstins 1610– | | |
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