Wilhelm Kohl, a single window builder (Fensterbauer), settled in the Volga German colony of Katharinenstadt on 27 August 1766. He is recorded there on the 1767 census in Household No. 208.
The 1767 census records that Wilhelm Kohl came from the German region of Mainz.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 318.