Jakob Keller, a carpenter (Zimmermann), his wife Maria, and children (Anna Maria, age 3; Jakob, age 1) are recorded on the 1767 census of Leitsinger in Household No. 29. They had settled there on 12 May 1767.
The 1767 census records that Jakob Keller came from the German village of Obernhausen in the Kurtrier region.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 69.