Balthasar Schäfer, his wife Margaretha, and their children (Johann Valentin, age 3¾; Eva Dorothea, age 1½) are recorded on the 1775 census of Schilling in Household No. 46.
- 1775 Census of Schilling (No. 46).
- 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): Sg047.