Mennonites from Groningen » Sources » Stamboom Helmantel; " Tussen Hunze en Lauwers " van G. H. Ligterink; Nederlands archief voor kerkgeschiedenis, Volumes 59-60; Kwartierstaat van (Klein) kinderen Postma-Heuker; Groninger Archieven (Familie De Grijs-Alserda, 1558-1939)
Source description
Stamboom Helmantel; " Tussen Hunze en Lauwers " van G. H. Ligterink; Nederlands archief voor kerkgeschiedenis, Volumes 59-60; Kwartierstaat van (Klein) kinderen Postma-Heuker; Groninger Archieven (Familie De Grijs-Alserda, 1558-1939)
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