Peter Karl Hess, a craftsman (Handwerker), and his wife Anna Katharina are recorded on the 1767 census of Grimm in Household No. 29.
Peter Karl Hess is recorded on an appendix to the 1775 census of Grimm in Household No. 5 along with his new wife and children.
The 1767 census records that Peter Karl Hess came from the German village of Kleinburg.
- 1775 Grimm Census (Household No. 5).
- 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): Gm049, Gm109.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 77.