When copying data from this family tree, please include a reference to the origin: Nel Pannekoek, "Ancestors Marja Westerhof", database, Genealogy Online (https://www.genealogieonline.nl/kwartierstaat-marja-westerhof/I2465.php : accessed June 15, 2024), "Willem van Claveren (± 1548-????)".
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