When copying data from this family tree, please include a reference to the origin: HKK Loon op 't Sandt, "Genealogiebestand Heemkundekring Loon op 't Sandt", database, Genealogy Online (https://www.genealogieonline.nl/genealogiebestand-heemkundekring-loon-op-t-sandt/I71394.php : accessed June 21, 2024), "Henrij Johannes Antonius van Opstal (± 1869-????)".
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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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