Jakob Kreil and his family are recorded on the 1775 census of Grimm in Household No. 25.
They are recorded on the 1798 census of Grimm in Household No. Gm068.
- 1775 Census of Grimm (No. 25).
- 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): Gm068.