When copying data from this family tree, please include a reference to the origin: Joke Koster, "Family tree Griffioen Jellema Friese Adel", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-griffioen-koster/I217830.php : accessed May 25, 2024), "Tjitske Pieters (Tzietske) Steindam (± 1635-????)".
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