Jakobina Grauer (age 21) and her brother Hans Christian (age 11) settled in the Volga German colony of Fischer on 7 July 1766 along with their mother. They are recorded on the 1767 census in Household No. 26 along with their stepfather Johannes Kaust.
The 1767 census does not record from where the Grauer family came.
- 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): Fs12.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 415.