Wellicht dezelfde als Johannes van Oolen, Hij zou dan twee ker gehuwd zijn geweest.Martinus Smuldedrs (x Adriana van Oolen ) is namelijk een oom van Maria Elisabeth van oolen>Verder uitzoeken.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I105146.php : accessed January 28, 2026), "Jan "IDem ??" van Olen".
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