Orphan Johann Christian Deim settled in the Volga German colony of Rosenheim on 27 July 1765. He is recorded there on the 1767 census in Household No. 29 along with his uncle, Johann Schreider.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 69.