When copying data from this family tree, please include a reference to the origin: Jos Robbertsen, "Family tree Robbertsen-Dierks Limburg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-robbertsen-dierks/I9624.php : accessed June 21, 2024), "Johan Joseph Heinrichs (± 1815-????)".
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