When copying data from this family tree, please include a reference to the origin: Ronald Kok, "Family tree Kok", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_kok/I14701.php : accessed March 11, 2026), "Gradus van Raaij (± 1809-1896)".
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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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