Valentin Groh, a farmer, his wife Maria, and children (Philipp, age 23; Balthasar, age 21; Konrad, age 17½) arrived from Lübeck at the port of Oranienbaum on 22 July 1766 aboard the pink Lev under the command of Lieutenant Fyodor Fyodorov. Both parents died after arriving in Russia.
The surviving children settled in the Volga German colony of Grimm and are recorded there on the 1767 census in Household No. 79.
Balthasar Groh and his family are recorded on the 1775 census of Grimm in Household No. 154.
Both the Oranienbaum passenger list and the 1767 census record that the Groh family came from the German region of Friedberg.
- 1775 Grimm Census (Household No. 154).
- 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): Gm070.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 84.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2426.