Johannes Knüppenberg from Kukkus and his family are recorded on the 1798 census of Anton in Household No. An14.
Descendants of this family are recorded on the 1834 census of Anton in Households No. 18, 24, & 51.
- 1834 Anton Census (Households No. 18, 24, 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): An14.