When copying data from this family tree, please include a reference to the origin: G.F. Walther, "Descendants Walther - Riem Vis", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-walther-riem-vis/I731.php : accessed October 25, 2024), "Jan Harmanus de Boer (1750-????)".
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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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