Johann Michael Reis, his wife Anna Barbara, and their sons (Georg Peter, age 7½; Georg Friedrich, age 3; Johann Heinrich, age ¼) are recorded on the 1775 census of Schilling in Household No. 51.
- 1775 Census of Schilling (No. 51).
- 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): Sg051, Sg053.