Adam Grollmann, a farmer, and his family arrived from Lübeck at the port of Oranienbaum on 18 June 1766 aboard the hooker Anna Catharina under the Skipper Adolph Scharpenberg.
They settled in the Volga German colony of Keller on 12 May 1767 and are recorded there on the 1767 census in Household No. 28.
The 1767 census records that Adam Grollmann came from the German village of Bodenheim in the Kurmainz region.
There are no known surviving male lines of this family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Der Göttinger Arbeitskreis, 2001): 347.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #894.