When copying data from this family tree, please include a reference to the origin: E.A. Harmsen, "Family tree Harmsen-de Vries", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-harmsen-de-vries/I50810.php : accessed June 19, 2024), "Maria Dirksdochter Hakker (1701-????)".
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