Johann Andreas Rosemann, a locksmith (Schlosser), and his wife Ulrica arrived from Lübeck at the port of Oranienbaum on 12 September 1766 aboard an English frigate under the command of Skipper Adam Beerfeier.
They settled in the Volga German colony of Bettinger on 3 August 1767 and is recorded there on the 1767 census in Household No. 7.
In 1781, Andreas Rosemann left the colony.
Both the Oranienbaum passenger list and the 1767 census records that Johann Andreas Rosemann came from the German region of Ansbach.
- 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): Mv0236.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 133.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #4827.