Johann[es] Mager, his wife Katharina, and daughter Margaretha (age 2½) arrived from Lübeck at the port of Oranienbaum on 12 September 1766 aboard the snow-brig Frei Gebruder under the command of Skipper Minzberger.
Johann Mager, his wife Catharina, and daughter Margaretha (age 2½, died en route) are recorded on the list of colonists being transported from St. Petersburg to Saratov in 1767.
Johannes Mager and his wife are recorded on the 1798 census of Neu-Kolonie in Household No. Nk08.
There are no known surviving male lines of this family among the Volga German colonies.
- 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): Nk08.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5767.
- Rauschenbach, Georg. Deutsche Kolonisten auf dem Weg von St. Petersburg nach Saratow: Transportlisten von 1766-1767 (Moscow: G.V. Rauschenbach, 2017): #6409-6411.