Georg Peter Fromm and his family are recorded on the 1798 census of Shcherbakovka in Household No. Sv22.
Johann Konrad Fromm from Shcherbakovka and his family are recorded on the 1857 census of Erlenbach in Household No. 40.
- 1857 Erlenbach Census (Household No. 40).
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Sv22.