Johann Georg Weidhardt (also spelled Wiedhardt or Weithardt on various sources) was born about 1745 in Ober-Ohmen, southwest of Alsfeld. He was Lutheran. He married Anna Maria Schwing [some sources indicate Schwining] in Büdingen on 28 April 1766. She had been born about 1743 in Herbstein and was Roman Catholic.
They settled in Krasnoyar on 20 July 1767 and are recorded there on the 1767 Census in Household No. 76. They had no children at the time.
On the 1798 census, both were still living in Krasnoyar, and are recorded there in Household No. Ks079.
- Die Geschichte der Wolgadeutschen vom Vogelsberg zur Wolga (Alsfeld, Wiesbaden: Die Albert-Schweitzer-Schule, 1990).
- 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): Ks079.
- Mai, Brent Alan and Dona Reeves-Marquardt, German Migration to the Russian Volga (1764-1767) (Lincoln, NE: American Historical Society of Germans from Russia, 2003): 78.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 436.