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/I9727.php : accessed January 28, 2026), "Maria Ridders".
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