When copying data from this family tree, please include a reference to the origin: Joop, "Family tree Vermaas_de_ Visser", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-vermaas-de-visser-loene/I10137.php : accessed August 6, 2025), "Johanna Helena van Dam (1842-????)".
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