When copying data from this family tree, please include a reference to the origin: Ulrich Haasdijk, "Haasdijk family from Oldeboorn", database, Genealogy Online (https://www.genealogieonline.nl/haasdijk-family-from-oldeboorn/I108469.php : accessed June 22, 2024), "Aaltje Gijsberts van Velthuijzen".
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