When copying data from this family tree, please include a reference to the origin: Jan J.W. Baas, "Family tree Baas-Vanheeswijck", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-baas-vanheeswijck/I103248.php : accessed June 20, 2024), "Gerritdine Ulsens (Ulzens)".
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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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