When copying data from this family tree, please include a reference to the origin: S.H. de Koning, "Family tree De Koning", database, Genealogy Online (https://www.genealogieonline.nl/familiestamboom-de-koning/I1072397441.php : accessed June 4, 2024), "Maria Cornelis Jan Coijen (± 1640-< 1697)".
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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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