Johann Wilhelm Roth, his wife Katharina, and their sons (Johann Heinrich, age 4½; Konrad, age 2½) are recorded on the 1775 census in the Volga German colony of Schilling in Household No. 56.
- 1775 Census of Schilling (No. 56).
- 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): Sg057.