Groningse doopsgezinden » Sources » “De lijsten der hoogstaangeslagenen in het departement van de Westereems” van jhr. dr. P. J. van Winter, uitgave 1951; Alle Groningers; http://groups.yahoo.com/neo/groups/groningen-genealogy/conversations/topics/25036; "Land en Volk van Humsterland" van J. Bierma uit 1961
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