Johann Georg Flach (age 19) is recorded on the 1767 census of Warenburg in Household No. 129 along with his stepfather Balthasar Bös.
Johann Georg Flach and his wife are recorded on the 1798 census of Warenburg in Household No. Wr070 along with a note that he is working in Laub.
The 1767 census does not record from where Johann Georg Flach came.
There are no known surviving male lines of this Flach family among the Volga German colonies.
- 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): Wr070.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Der Göttinger Arbeitskreis, 2008): 341.
Brent Mai