When copying data from this family tree, please include a reference to the origin: Wilma During, "Family tree During, van der Kolk, van den Bosch, Prins, Stegeman, Molenaar, Bos", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-during/R4626.php : accessed December 30, 2025), "Klaas Arends (Klaas Arends) Kuiper".
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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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