When copying data from this family tree, please include a reference to the origin: Marga van der Velden, "Family tree Van der Velden, Gesink, Blonk, Seijmonsbergen, vd Geur", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-der-velden/I1615.php : accessed May 22, 2024), "Gerrit Korthof".
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Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
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