Check the information Open Archives has about Lammersen.
Check the Wie (onder)zoekt wie? register to see who is (re)searching Lammersen.
The Family tree Van Otterlo publication was prepared by Hans van Otterlo (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Hans van Otterlo, "Family tree Van Otterlo", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-otterlo/I12987.php : accessed June 13, 2024), "Gerrit Lammersen (????-< 1848)".
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