Check the information Open Archives has about Van Leeuwen.
Check the Wie (onder)zoekt wie? register to see who is (re)searching Van Leeuwen.
The Family tree Doppenberg publication was prepared by Henk Doppenberg (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Henk Doppenberg, "Family tree Doppenberg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-doppenberg/I6184.php : accessed January 28, 2026), "Wilhemus Hendrikus van Leeuwen".
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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.
Do not use this data until you have checked it, preferably at the source (the archives).
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