When copying data from this family tree, please include a reference to the origin: Eli de Joode, "Family tree De Joode - Van Wijk, Mulder - Veldkamp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-joode/R4635.php : accessed January 20, 2026), "Gijsbert Tijsen Verwoerd van Gieltjesdorp (< 1630-????)".
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