When copying data from this family tree, please include a reference to the origin: Martin Vogelzangs, "Vogelzangs Familie Stamboom", database, Genealogy Online (https://www.genealogieonline.nl/vogelzangs-familie-stamboom/I560166.php : accessed September 26, 2024), "Johannes Andreas Willem Heijnen (± 1904-± 1983)".
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