Nikolaus Grosser, a farmer, and his family arrived from Lübeck at the port of Oranienbaum on 15 September 1766 aboard the galliot Adler under the command of Skipper Paul Adam Drath.
Nikolaus's wife Anna Maria died, and Nikolaus remarried to Anna, the widow of Johann Riedel. The combined Grosser/Riedel family settled in the Volga German colony of Hölzel on 11 September 1767 and are recorded there on the 1767 census in Household No. 35.
The 1767 census records that Nikolaus Grosser came from the village of Frelen [?] in Luxembourg.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Hz08, Hz19.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 117.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5976.