Georg Bernhardt (age 18) and his brothers (August Martin, age 16; Johann Michael, age 13) are recorded on the 1767 census of Warenburg in Household No. 67 along with their stepfather Johann Samuel Ismann.
The 1767 census does not record from where the Bernhardt brothers came.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 322.