Franz Donis and his family are recorded on the 1775 census of Beideck in Household No. 1. Franz Donis is recorded as the mayor (Vorsteher) of the colony at this time.
- 1775 Census of Beideck (No. 1).
- 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): Bd21.