When copying data from this family tree, please include a reference to the origin: Johannes Arnoldus Franciscus Henricus Eijsermans, "Stamboom Eijsermans", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I388457.php : accessed June 3, 2024), "Cornelia Maria Hubertina Koeken (????-< 1916)".
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