Mogelijk is Keuper niet zijn familienaam maar zijn beroep. Zijn dochter wordt in haar trouwakte ook beschreven als Keuper, echter in de doopakten van haar kinderen als: van de Wijnberg.
When copying data from this family tree, please include a reference to the origin: Arnold Batavier, "Family tree Batavier", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-batavier/I106698.php : accessed February 17, 2026), "Willem Keuper".
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