Thomas Herbstsommer, a tailor, his family, and his brother Jakob arrived from Lübeck at the port of Oranienbaum on 12 September 1766 aboard a ship under the command of Skipper Heinrich Sager.
Thomas died after arriving in Russia and his widow Ursula remarried to Andreas Niesslein. The combined Niesslein/Herbstsommer families settled in the Volga German colony of Hölzel on 11 September 1767 and are recorded there on the 1767 census in Household No. 10.
The Oranienbaum passenger list records that Thomas Herbstsommer came from the German region of Bamberg.
- 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): Hz18.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 111.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #6168.