Jakob Knoll and his family are recorded on the 1798 census of Grimm in Household No. Gm124 along with his mother Appolonia (age 62).
Jakob Knoll and his family are recorded on the 1834 census of Grimm in Household No. 201.
- 1834 Grimm Census (Household No. 201).
- 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): Gm124.