Widower Johann Heidrich, a farmer, settled in the Volga German colony of Walter on 25 August 1767. He is recorded there on the 1767 censes in Household No. 9.
The 1767 census records that Johann Heidrich came from the German village of Großenmoor.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 297.