Thomas Krämer, a single farmer, settled in the Volga German colony of Boisroux on 7 June 1767. He is recorded there on the 1767 census in Household No. 89.
The 1767 census records that Thomas Krämer came from the German region of Dessau.
There are no known surviving male lines of this Krämer family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 161.