When copying data from this family tree, please include a reference to the origin: Kees Boas, "Family tree Boas-Bianchi-Baaij-Happee e.v.a.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-boas/I25003.php : accessed June 20, 2024), "Jacob van Baars".
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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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