Nikolaus Keller, a farmer, and his wife Katharina settled in the Volga German colony of Krasnoyar on 20 July 1767 and are recorded there on the 1767 census in Household No. 30.
The 1767 census records that Nikolaus Keller came from the German village of Isistadt [?] in the Brandenberg region.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Ks034.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 422.