When copying data from this family tree, please include a reference to the origin: Frits Arink, "Family tree Schackman-Arink-Tel-Keijzer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-schackman/I1655.php : accessed February 5, 2026), "Antonie Claessen (Klaasse) "Teunis" Kors (1756-1828)".
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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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