Friedrich Lederer and his family, including his brother Jakob, settled in the Volga German colony of Dietel on 1 July 1767. They are recorded there on the 1767 census in Household No. 18.
Before 1798, Jakob Lederer and his family moved to the neighboring colony of Bauer.
This 1767 census records that they came from the Germany village of Pfirschbach.
- 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): Br03, Dt08.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 286.