Gertrude Kate Elisabeth Wiebenga 1902–1993 | | | | Pieter Gerkes Wiebenga 1838–1916 | | | | Gerko Wiardi Wiebenga 1806–1876 Agatha Jans Sipkes 1812–1885 | | | | Lammechien Gerko Wiardi – |
| | | Antje Jacobs Bakker 1767–1841 | | | | Sipke Klasen Sipkes 1726–1816 Jantje Feijkes … 1726–1789 | | |
| | | Jacob Sijbrands Bakker 1730–1802 | | |
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