Melchior Riefer and his family immigrated to Russia from the German village of Wallroth. They arrived at the port of Oranienbaum from Lübeck on 4 July 1766 aboard the English frigate Love and Unity under the command of skipper Thomas Fairfax. They settled in the Volga German colony of Nieder-Monjou on 7 June 1767 where they are recorded on the 1767 Census in Household No. 4. Son Nikolaus and his family are recorded on the 1798 Census in Nieder-Monjou in Household No. Nm08.
- 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): 727.
- Müller-Marschhausen, Ernst. “Russland-Auswanderer aus dem Bergwinkel um 1766 und die Spurensuche nach ihrer Rückkehr im 20. Jahrhundert.” [Online]
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 186.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): 115.