When copying data from this family tree, please include a reference to the origin: Wiet Koren, "Keuren en Koren from Limburg, Netherlands", database, Genealogy Online (https://www.genealogieonline.nl/koren-uit-limburg/I2658.php : accessed June 23, 2024), "Petrus Helwegen (????-< 1806)".
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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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