Johann Georg Rothgang, a single tailor (Schneider), arrived from Lübeck at the port of Oranienbaum on 15 September 1766 aboard the Danish galliot Nord Stern under the command of Skipper Detlev Belling.
He settled in the Volga German colony of Lauwe on 5 September 1767 and is recorded there on the 1767 census in Household No. 55.
In 1788, Johann Rothgang and his family moved from Lauwe to Laub.
The 1767 census records that Johann Georg Rothgang came from the German village of Munningen in the Enslingen region.
- 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): Lb05, Mv1518.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 49.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5244.