Orphan Johann Andreas Bastian (age 4), son of the deceased Johann Bastian, is recorded on the 1767 census of Warenburg in Household No. 15 along with Konrad Östreich and his wife. The 1767 census does not record a relationship between the Östreich and Bastian families.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 324.