Als moeder van Willem Aalbers wordt Johanna Klaassen genoemd als dat juist is moet Willem Aalbers worden verwijderd uit het gezin van Willem Aalbers en Anna Maria Klaassen.
When copying data from this family tree, please include a reference to the origin: Peter Menting, "Family tree Menting", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-menting/I18933.php : accessed January 4, 2026), "Anna Maria "Johanna" Klaassen".
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