https://www.genealogieonline.nl/en/genealogy-harssema/I64818.php
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-Notes about Jan BOUMA
10C1R from Gerrit Jans Roorda (? - 1643) and Abeltie Thijsses (? - ca 1625).
17C2R* from Atte Harcoz Siccama (ca 1360 - bef 1440).
grandparents
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The data shown has no sources.