When copying data from this family tree, please include a reference to the origin: Marc Ballijns, "Family tree Ballijns (Wilain-Willin-Wellijn-Willijns-Willeijns) - van Munster - Louis - van Os(ch)", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ballijns/I11291.php : accessed May 1, 2024), "Arie Leenheer".
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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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