When copying data from this family tree, please include a reference to the origin: Peter Koldewijn., "Genealogy Koldewijn - van Delden - Solleveld - Miggels - Vellekoop - Jurriens", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-koldewijn/I9273.php : accessed May 11, 2024), "Johannes Jacobus Oosterling".
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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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