Friedrich Müller, a farmer, and his family settled in the Volga German colony of Schäfer on 1 August 1766. They are recorded there on the 1767 census in Household No. 27.
The 1767 census records that Johann Konrad Müller came from the German region of Durlach.
- 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): Sf14.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 96.