Franz Karl, a farmer, and his wife Katharina settled in the Volga German colony of Schönchen on 17 August 1767. They are recorded there on the 1767 census in Household No. 10.
In 1774, Joseph Karl and his family moved from Schönchen to Moscow.
Franz Karl and his family are recorded on the 1798 census of Schönchen in Household No. Sn33.
The 1767 census records that Franz Karl came from the German village of Neuhof.
- 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): Sn33, Sn44, Mv2595
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 107.