Mennonites from Groningen » Sources » “Doopsgezinde Mabé’s en Blocks te Groningen en Haarlem, zeventiende – twintigste eeuw”, van M. R. Kremer, “De Nederlandsche Leeuw” 2015; https://archive.org/stream/algemeennederlan00vere/algemeennederlan00vere_djvu.txt; www.gameo.org
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