When copying data from this family tree, please include a reference to the origin: Serge van Nuijs (Antwerpen), "Genealogy takken "van Nuijs" en "Hoogers"", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_nuijs_hoogers/I86230.php : accessed June 9, 2024), "Petrus Koch (< 1850-????)".
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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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