Check the information Open Archives has about Doldersum.
Check the Wie (onder)zoekt wie? register to see who is (re)searching Doldersum.
The Family tree Beekelaar publication was prepared by H. Beekelaar (contact is not possible).
When copying data from this family tree, please include a reference to the origin: H. Beekelaar, "Family tree Beekelaar", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-beekelaar/I807.php : accessed February 13, 2026), "Johanna "Johanna" Doldersum".
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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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