Johannes Henkel, a farmer from the district of Isenburg, and his wife, Elisabeth, settled in the Volga German colony of Norka on 15 August 1767. They are recorded there on the 1767 census in Household No. 23.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 234.