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Interactive tree of
Jan
Groelfsema
Individual
Jan
Groelfsema
,
–
Jan
Groelfsema
–
Jantje
Griede
1834
–
1905
Melle
Griede
1795
–
1860
Teetje Pieters
Sikkema
1797
–
1871
Jan Jans
Griede
1737
–
1820
Jantje Willems
Medema
1755
–
1818
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Geertruit
Willems
1684
–
1766
…
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Pieter Alderts
Sikkema
1769
–
1846
Anje Pieters
van der Weg
1781
–
1851
Anje
Cornelis
1761
–
1802
Aldert Jans
Sikkema
1729
–
1775
Tietje
Pieters
1731
–
1805
Harke
Hebels
1708
–
1764
Feye
Jans
–
1749
…
…
–
Grietje
Arends
1694
–
1762
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