Johannes Betz, a craftsman (Handwerker), and his family settled in the Volga German colony of Messer on 18 June 1767 and are recorded there on the 1767 census in Household No. 81.
The 1767 census records that Johannes Betz came from the German district of Isenburg.
- 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): Ms33.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 150.