Johann Adam Zoller, a farmer, his wife Eva Christina Margaretha, and children (Philipp Jakob, age 14; Sophia, age 4) are recorded on the 1767 census of Schwed in Household No. 18. They had settled there on 1 July 1766.
The 1767 census records that Johann Adam Zoller came from the German region of Baden-Durlach.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 144.