Johannes Bensak, a farmer, and his wife Katharina are recorded on the 1767 census of Semenovka in Household No. 18 along with orphan Peter Haspert (age 16), son of the deceased Georg Haspert. They had settled there on 24 July 1767. The 1767 census does not record a relationship between the Bensak and Haspert families.
The 1767 census records that Johannes Bensak came from the German village of Michelbach in the Kurmainz region.
- 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): Se14.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 182.