Anna Blumberger (age 4) is recorded on the 1767 census of Ober-Monjou in Household No. 4 along with her stepfather Johannes Österlein.
The 1767 census does not record from where Anna Blumberger came.
There are no known surviving male lines of the Blumberger family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 290.