Adam Zahn, a farmer, settled in the Volga German colony of Graf on 10 June 1766. He is recorded there on the 1767 census in Household No. 18 along with his wife Anna Barbara.
In 1782, Anton Zahn moved from Graf to Astrakhan.
The 1767 census records that Adam Zahn came from the German village of Damice in Austria while his wife came from the German village of Linz.
- 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): Gf45, Mv0714.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 64.