Johann Peter Lochmann and his family are recorded on the 1798 census of Stephan in Household No. Sp03.
The death of Johann Peter Lochmann in 1827 is recorded on the 1834 census of Stephan in Household No. 13.
- 1834 Stephan Census (Household No. 13).
- 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): Sp03.