When copying data from this family tree, please include a reference to the origin: Michael Boers, "Ancestors Boers", database, Genealogy Online (https://www.genealogieonline.nl/kwartierstaat-boers/I38558.php : accessed June 5, 2024), "Cornelis Ariensz Keijser (????-± 1687)".
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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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