When copying data from this family tree, please include a reference to the origin: H. Visscher, "Family tree Visscher-Drenthen en Lohuis-Schreijer en circa 40 andere stambomen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-visscher/I41374.php : accessed September 25, 2024), "Hendrik Hendriks de Graaf (????-< 1759)".
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