David Sommer, a shepherd (Hirt), and his family settled in the Volga German colony of Beauregard on 27 August 1766. They are recorded there on the 1767 census in Household No. 43.
The 1767 census records that David Sommer came from the German village of Massenheim.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 188.