Friedrich Gerlinger, a cobbler, his wife Gertraude, and sons (Andreas, age 7½; Johann Friedrich, age 2½) are recorded on the 1775 census of Schilling in Household No. 45.
- 1775 Census of Schilling (No. 45).
- 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): Sg046.