When copying data from this family tree, please include a reference to the origin: Paul Snoeij, "Family tree Snoeij-van den Donker-Elich-Sundermeijer-Martens", database, Genealogy Online (https://www.genealogieonline.nl/stamboomonderzoek-snoeij/I14312.php : accessed May 22, 2024), "Johannes Cornelis Koppens".
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Please stick to the following rules
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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