When copying data from this family tree, please include a reference to the origin: Jordi Martijn van Os, "Ancestors Jordi Martijn van Os", database, Genealogy Online (https://www.genealogieonline.nl/stambomen-van-os/I0366.php : accessed January 30, 2026), "Johannes Coenraad Streng (????-< 1810)".
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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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