Johann Kaspar Brüdersohn, a tanner (Gerber), and his family settled in the Volga German colony of Rosenheim on 27 July 1765. They are recorded there on the 1767 census in Household No. 20.
The 1767 census records that Johann Kaspar Brüdersohn came from the German town of Lübeck and that his wife came from the Swedish village of Stralsund.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 66.