Johann Graf, a baker (Bäcker), and his wife Barbara settled in the Volga German colony of Leitsinger on 12 May 1767. They are recorded there on the 1767 census of Leitsinger in Household No. 18.
Widow Barbara Graf from Leitsinger is recorded on the 1798 census of Seelmann in Household No. Sm44.
The 1767 census records that Johann Graf came from the German village of Vorweichloch [?] in the Würzburg region.
There are no known surviving male lines of this Graf 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): Sm44.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 66.