Nikolaus Müller, a farmer from the district of Isenburg, and his family [second wife: Anna Margaretha; children by his first wife: Christina (age 7), Katharina (age 4), and Johann Heinrich (age 1.5)] settled in the Volga German colony of Norka. They are recorded there on the 1767 census in Household No. 12.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Nr017.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 3 (Goettingen: Der Göttinger Arbeitskreis; 2005): 231.