When copying data from this family tree, please include a reference to the origin: A.W.M. (Dolf) van der Valk, "Family tree Van der Valk", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-der-valk/I8317.php : accessed February 2, 2026), "Johanna Maria Vermeulen (± 1749-± 1796)".
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