Widower Christoph Friedrich, a farmer, is recorded on the 1767 census of Kaneau in Household No. 88. He had settled there on 3 August 1767.
Andreas Friedrichsen [sic] from Kaneau is recorded on the 1798 census of Graf in Household No. Gf22.
The death of Andreas Friedrich [sic] in 1817 is recorded on the 1834 census of Graf in Household No. 45.
The 1767 census records that Christoph Friedrich came from the German region of Halle.
There are no known surviving male lines of this Friedrich family among the Volga German colonies.
- 1834 Graf Census (Household No. 45).
- 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): Gf22.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 263.