When copying data from this family tree, please include a reference to the origin: Bernard-Jan Venhoven, "Family tree van Venhoven en Alster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-bernard-jan-en-darja/I623401.php : accessed May 13, 2024), "Joannes /Peiffer Pfeiffer (1703-< 1756)".
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