Heinrich Guntherom, a farmer, his wife Appolonia, and daughter Maria Sophia (age 5) are recorded on the 1767 census of Keller in Household No. 48. They had settled there on 12 May 1767.
The 1767 census records that Heinrich Guntherom came from the German village of Allendorf in the Kurmainz region.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Der Göttinger Arbeitskreis, 2001): 351.