Albrecht Wagner, a farmer, and his family settled in the Volga German colony of Rosenheim on 15 March 1766. They are recorded there on the 1767 census in Household No. 39.
The 1798 census of Enders records David Wagner from Rosenheim in Household No. En21.
The 1767 census records that Albrecht Wagner came from the German territory of Grafschaft Manderscheid.
- 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): En21, Rm52.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 71.