When copying data from this family tree, please include a reference to the origin: Jos Van de Ven, "Ancestors Jozef Roger Van de Ven", database, Genealogy Online (https://www.genealogieonline.nl/kwartierstaat-jozef-roger-van-de-ven/I15701.php : accessed June 4, 2024), "Guilielmus Helsen (< 1711-????)".
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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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