When copying data from this family tree, please include a reference to the origin: Abele Jan Zandstra, "Family tree verwanten aanverwanten Zandstra/Agema", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zandstra-agema/I28542.php : accessed June 3, 2024), "Willem Nieuwenhuis (1775-????)".
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Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
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