When copying data from this family tree, please include a reference to the origin: Wim Hummelman, "Genealogy Hummelman, van Kluijve, Slotboom, von Burg, Nannes", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-hummelman/I7565.php : accessed May 31, 2024), "Aalderok Philippus Camfferman".
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Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
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