Check the information Open Archives has about Van Hattem.
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The Family tree Ros van Zegwaart publication was prepared by wijlen Ed Ros (at the request of the family this publication remains available, contact is not possible).
When copying data from this family tree, please include a reference to the origin: wijlen Ed Ros, "Family tree Ros van Zegwaart", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ros-van-zegwaart/I4724.php : accessed May 21, 2024), "Sweertje (Severijntje) van Hattem".
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