Nikolaus Dohlberg, his wife Barbara, and children (Elisabeth, age 4½; Friedrich, age 1½) are recorded on the 1775 census of Beideck in Household No. 36 along with a note that their house had burned in 1770.
Friedrich Dohlberg and his family are recorded on the 1798 census of Beideck in Household No. Bd73.
- 1775 Census of Beideck (No. 36).
- 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): Bd73.