When copying data from this family tree, please include a reference to the origin: Rob de Ridder, "Family tree De Ridder / Wolterbeek en aanverwante geslachten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-ridder-wolterbeek/I514528.php : accessed June 25, 2024), "Jan Caspar Vrijdag sr (> 1659-1712)".
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