Mangriech [sic] Kieffert, a farmer, and his family settled in the Volga German colony of Chasselois on 15 February 1767. They are recorded there on the 1767 census in Household No. 39.
The 1767 census records that Mangriech Kieffert came from Luxembourg.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 1 (Göttingen: Göttinger Arbeitskreis, 1999): 260.