Kaspar Koch, a farmer from Erbach, and his family arrived from Lübeck at the port of Oranienbaum on 31 July 1766 aboard a Russian packet-boat under the command of Lieutenant Pyotr Malinkov.
They settled in the Volga German colony of Dietel on 1 July 1767 and are recorded there on the 1767 census in Household No. 36.
The 1767 census records that Kaspar Koch came from the German village of Soldinin near Elbin.
- 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): Dt30, Dt31.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 293.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2802.