Adam Mainz, a tanner (Gerber), and his wife Christina arrived from Lübeck at the port of Oranienbaum on 12 September 1766.
Christina died and Adam remarried Katharina, the widow of Karl Kunzelmann. They settled in the Volga German colony of Leitsinger on 19 August 1767 and are recorded there on the 1767 census in Household No. 44 along with the surviving Kunzelmann children.
The 1767 census records that Adam Mainz came from the German village of Fladungen in the district of Würzburg.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 70.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #5782.