Gottfried Grummet and his wife Katharina are recorded on a list of Beauregard recruits attached to the 1767 census (No. 142) along with a note that they located in the colony of Bettinger in 1768.
The 1767 census records that Gottfried Grummet came from the German village of Suhl.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Bt29.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 4 (Goettingen: Der Göttinger Arbeitskreis, 2008): 377.