Peter Berkenstock, a turner (Dreher), settled in the Volga German colony of Schuck on 18 July 1766. He and his family are recorded there on the 1767 census in Household No. 30.
The 1767 census records that Peter Berkenstock came from the German village of Ladenburg.
- 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): Su18.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 116.