Lulof (Luilf) Harms Koolman 1766–1799 Emke Olferts Koolman 1765–1832 | | | | Harm Hindriks Coolman 1729–1773 Nantje Fiepkes (Koolman) 1740–1773 | | | | Hindrik Harms (Coolman) 1697–1759 | | | | Harm Fiepkes (Feepkens) 1660–1709 | | |
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| | | Fiepke Harms (Coolman) 1690–1759 Etje Juirckes (Jurjes) 1695–1759 | | | | Harm Fiepkes (Feepkens) 1660–1709 | | |
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| | | Beertje Scholtes 1721–1749 Antje Hindriks Coolman 1736–1815 | | | | | | Hindrik Harms (Coolman) 1697–1759 | | | | Harm Fiepkes (Feepkens) 1660–1709 | | |
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