When copying data from this family tree, please include a reference to the origin: Gilles Otten, "Family tree Otten - Zuid Limburg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-otten/I457.php : accessed December 29, 2025), "Petrus Ghelen".
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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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