Daubert (Yagodnaya Polyana)
Nikolaus Daubert, and farmer from the district of Nidda, and his wife, Katharina Elisabeth, settled in the Volga German colony of Yagodnaya Polyana on 16 September 1767. They are recorded there on the 1767 census in Household No. 9.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Yp43.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 175.