When copying data from this family tree, please include a reference to the origin: A.A.A. Kolen, "Family tree Colen / Kolen / Koolen", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-colen-kolen/I1311.php : accessed June 6, 2024), "Cornelia van Beurden (1757-1844)".
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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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