Heinrich Müller, from the district of Isenburg, and his wife Anna Katharina settled in the Volga German colony of Norka on 22 September 1767. They are recorded there on the 1767 census in Household No. 214.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Nr095.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 3 (Goettingen: Der Göttinger Arbeitskreis; 2005): 287.