When copying data from this family tree, please include a reference to the origin: Marjo van Leeuwen, "Family tree Van Leeuwen-Van der Speck en vele anderen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-leeuwen-van-der-speck/R1684.php : accessed May 10, 2025), "Herrebert Theodorus van Coolwijk".
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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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