When copying data from this family tree, please include a reference to the origin: A.R. Servaes, "Family tree Servaes, Maastricht/Venlo/Straelen/Neuss/Düsseldorf", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-servaes/I7803.php : accessed January 8, 2026), "Marinus Bonifacius Willem van Wickevoort Crommelin".
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