Nikolaus Bartholomäus Sinner and his wife Katharina are recorded on the 1767 census of Walter in Household No. 94. They had settled there on 10 September 1767.
The 1767 census records that Nikolaus Bartholomäus Sinner came from the German village of Hirsfeld [Gersfeld?].
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 316.