When copying data from this family tree, please include a reference to the origin: J.P.P. van den Berg, "Bidprentjes Van den Berg - 58.359 prentjes, 100% in gescand (enkele dubbelzijdig).", database, Genealogy Online (https://www.genealogieonline.nl/bidprentjes-van-den-berg/I25180.php : accessed June 10, 2024), "Jan Frans Keulers".
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