When copying data from this family tree, please include a reference to the origin: Andre Ottenhoff, "Family tree Ottenhoff - Schilder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ottenhoff/I24240.php : accessed January 3, 2026), "Johanna Elisabeth Maria "Jans" Grünke Grunke (± 1884-> 1948)".
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