Johannes Grass, a farmer, his wife Anna, and daughter Anna (age 4) are recorded on an appendix to the 1767 census of Paulskaya in Household No. 25 along with a note that they relocated to the colony of Basel in 1768.
The 1767 census records that Johannes Grass came from the German village of Breitenbach.
There are no known surviving male lines of this Grass family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 3 (Göttingen: Der Göttinger Arbeitskreis, 2005): 357.