When copying data from this family tree, please include a reference to the origin: Tom Simon Roos, "Family tree familie Roos komende uit Enkhuizen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-roos-enkhuizen/I192.php : accessed May 2, 2024), "Adrianus Blankestein (1819-1892)".
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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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