Wilhelm Horst, a farmer, and his family arrived from Lübeck at the port of Oranienbaum on 4 July 1766 aboard the ship Der Junge Mathias under the command of Skipper David Wollert.
They settled in the Volga German colony of Dobrinka on 20 June 1767 and are recorded there on the 1767 census in Household No. 85.
The 1767 census records that Wilhelm Horst came from the German village of Seminrot in the Darmstadt area.
- 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): Db74.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 337.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #1922.