When copying data from this family tree, please include a reference to the origin: Rob van de Schepop, "Family tree Van de Schepop, Nijhuis en Schäperkötter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-de-schepop/I1237.php : accessed March 11, 2026), "Johanna Maria Koppen (1791-????)".
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