The Johann Christoph Bär family from the area of Isenburg settled in Yagodnaya Polyana on 16 September 1767, where they are listed on the 1767 Census in Household No. 6.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2005): 174.