Gustav Hirsch, a craftsman (Handwerker), and his family settled in the Volga German colony of Galka on 1 July 1765. They are recorded there on the 1767 census in Household No. 21.
The 1767 census records that Gustav Hirsch came from the region of Petersburg.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 24.