Jantje van der Kooi 1882–1970 | | |
| | Jan Hedzers van der Kooi 1852–1908 Aaltje Gerrits Sinia 1853–1930 | | | | Hedzer Keimpes van der Kooi 1802–1877 Jantje Gerrits Bosch 1816–1880 |
| | | Gerrit Sjolles Sinia 1824–1873 Antje Wiggers Heerma 1816–1891 | | | | Sjolle Gerrits Sinia 1800–1858 Trijntje Thomas Helder 1801–1852 | | | | Gerrit Rinses Sinia 1768–1811 Antje Sjolles Douma 1769–1841 | | | | Rinse Gerryts Sinia 1740– Elisabeth Eelkes … 1743–1793 | | |
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| | | Thomas Jans Helder 1761–1830 | | | | Jan Jans Helder 1727–1807 Yfke Cornelis Heeringa 1726–1770 | | |
| | | Trijntje Lieuwes … 1743–1813 | | |
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