Augustinus Thomann, a farmer from Worms, and his wife Sibilla arrived from Lübeck at the port of Oranienbaum on 25 July 1766 aboard a Russian packet-boat under the command of Lieutenant Sornev.
They settled in the Volga German colony of Dietel on 1 July 1767 and are recorded there on the 1767 census in Household No. 41.
The 1767 census records that August Thomann came from the German village of Worms Rikon 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): Dt27.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 295.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2696.