When copying data from this family tree, please include a reference to the origin: Rob Willemsen, "Family tree Willemsen", database, Genealogy Online (https://www.genealogieonline.nl/willemsen-stamboom/I167.php : accessed March 17, 2026), "Cornelis Marinus Bouwman (1870-1945)".
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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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