Sebastian Bertsch, a farmer, and his family settled in the Volga German colony of Chasselois on 2 August 1766. They are recorded there on the 1767 census in Household No. 5.
Following the destruction of Chasselois, the Bertsch family relocated to the colony of Mariental.
Sebastian Bertsch from Chasselois and his family are recorded on the 1798 census of Mariental in Household No. Mt31.
The death of Sebastian Bertsch in 1825 is recorded on the 1834 census of Mariental in Household No. 54.
The 1767 census records that Sebastian Bertsch came from the German village of Saarburg in the Trier region.
- 1834 Mariental Census (Household No. 54).
- 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): Mt31.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Der Göttinger Arbeitskreis, 1999): 250.