Melchisedek Radi, a farmer, and his wife Dorothea Elisabeth arrived from Danzig at the port of Oranienbaum on 4 May 1766 aboard a ship under the command of Skipper Jacob Janson.
They settled in the Volga German colony of Messer on 15 November 1766 and are recorded there on the 1767 census in Household No. 27.
The Oranienbaum passenger list records that Melchisedek came from the German region of Dresden while the 1767 census records that he came from the region of Brandenburg.
- 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): Ms31.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Der Göttinger Arbeitskreis, 2005): 137.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #51.