Johann Hemann, a farmer, and his wife Dorothea settled in the Volga German colony of Ober-Monjou on 23 July 1767. They are recorded there on the 1767 census in Household No. 82.
The 1767 census records that Johann Hemann came from the German village of Denklingen.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 307.