Widow Margaretha Dreher, a craftsman (Handwerker), and her son Franz Jakob settled in the Volga German colony of Mariental on 15 July 1766. They are recorded there on the 1767 census in Household No. 83.
The 1767 census records that Margaretha Dreher came from Luxembourg.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 116.