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/I279805.php : accessed September 26, 2024), "Geeske (Geesbertje) v.d. Velden (1866-1945)".
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