Friedrich Jung, his wife, and his step-son, Georg Michael Opel, arrived from Lübeck at the port of Oranienbaum on 25 July 1766 aboard the snow-brig Maria Sophia under the command of Skipper Johann Bauer.
They settled in the Volga German colony of Preuss on 11 August 1767 and are recorded there on the 1767 census in Household No. 107.
- 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): Ps58.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 433.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2496.