George Franz Wittwänger married Dorothea Leonhardt in Büdingen on 13 May 1766. She had been born 31 May 1737 in Sprendlingen.
Georg Franz Wittwänger, a craftsman (Handwerker), and his family settled in the Volga German colony of Frank in 1767 and are recorded there on the 1767 census in Household No. 58.
The 1767 census records that Georg Franz Wittwänger came from the German village of Aurach in the Württemberg region.
There do not appear to be any surviving male descendants of this family among the Volga German colonies.
- 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): Fk064.
- Mai, Brent Alan and Dona Reeves-Marquardt. German Migration to the Russian Volga (Lincoln, NE: American Historical Society of Germans from Russia, 2003): 85.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 428.