Leonhard Wittmann, a tailor (Schneider), his wife, and his sister arrived from Lübeck at the port of Oranienbaum on 31 July 1766 aboard a Russian ship under the command of Lieutenant Samuel Gibbs.
They settled in the Volga German colony of Holstein on 7 July 1767 and are recorded there on the 1767 census in Household No. 35.
The 1767 census records that Leonhard Wittmann came from the German village of Nelzinei (?) near 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): Ho06.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 134.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #2844.