When copying data from this family tree, please include a reference to the origin: Johann Valentin Wittkamp, "Family tree Wittkamp-Froehling", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-sittkamp-froehling/I500096.php : accessed June 3, 2024), "Colonel Emmanuel Daniel Hellberg (????-1909)".
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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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