Joseph Thomä, a farmer, and his wife Maria Klara arrived from Lübeck at the port of Oranienbaum on 8 August 1766 aboard a pink under the command of Lieutenant Moisey Davydov.
Maria Klara died and Joseph remarried to Eva Elisabeth. They settled in the Volga German colony of Köhler on 21 August 1767 and are recorded there on the 1767 census in Household No. 84 along with Eva Elisabeth's son, Johannes (age 17).
The Oranienbaum passenger list records that Joseph Thomä came from the German region of Mainz while the 1767 census records that he came from the German village of Aschaffenburg.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 380.
- Pleve, Igor. Lists of Colonists to Russia in 1766: Reports by Ivan Kulberg (Saratov: Saratov State Technical University, 2010): #4203.