Open Archives
You have searched for persons in documents with Heyting in the name, this gives 192 search results.
Find your ancestors and publish your family tree on Genealogy Online via https://www.genealogieonline.nl/en/
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The results of the search can be downloaded in PDF and GEDCOM format.
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You can download the result list in spreadsheet format (CSV or XLS). This is possible up to a maximum of 10,000 results.