Heinrich Friesorger is recorded on the 1775 census of Grimm in Household No. 24, married to Elisabeth Lindt, the sister of Heinrich Lindt.
They are recorded on the 1798 census of Grimm in Household No. Gm002.
- 1775 Census of Grimm (No. 24).
- 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): Gm002.