Balthasar Wolf (age 19) and his brother Anton (age 12) are recorded on the 1767 census of Preuss in Household No. 11 along with their stepfather Ludwig Uhlmann. They had setted in Preuss on 12 May 1767.
Balthasar Wolf and his family are recorded on the 1798 census of Preuss in Household No. Ps02.
Anton Wolf and his family are recorded on the 1767 census of Preuss in Household No. Ps17.
The 1767 census does not record from where the Wolf brothers came.
- 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): Ps02, Ps17.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 415.