| | Jacobus Jansen Kooij 1766–1824 Christina Jacobs ‘Stijntje’ de Jong 1773–1846 | | | | Joannis Gerrits ‘Jan’ Kooij 1733–1815 Catharina Jans ‘Trijntje’ … – | | |
| | | Jacobus Jacobsen de Jong 1747–1816 Margarita Tjerks ‘Grietje’ Beiaart 1748–1780 Catharina Dirks ‘Trijntje’ Metz 1750–1804 | | | | Tiarck Sijbrands Beijer 1702– Christina Franses ‘Stijntje’ … 1707– | | |
| | | Theodorus Gerbrandus ‘Dirk’ Metz 1712–1792 Janke Hendriks … 1709–1754 | | |
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