When copying data from this family tree, please include a reference to the origin: Marianne Koster, "Genealogy Koster-Rodenhuis", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-koster-rodenhuis/I8770.php : accessed May 17, 2024), "Cornelis Gerritsz van Voorthuizen (± 1530-< 1597)".
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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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