Johann Heinrich Aab, a farmer, his family, and his brother Konrad arrived from Lübeck at the port of Oranienbaum on 22 July 1766 aboard the pink Lev under the command of Lieutenant Fyodor Fyodorov.
They settled in the Volga German colony of Grimm and are recorded there on the 1767 census in Household No. 16.
Both the Oranienbaum passenger list and the 1767 census record that Johann Heinrich Aab came from the German district of Darmstadt.
- 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): Dh068, Gm096, Gm097.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 75.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2439.