Hubertus Schubert, a farmer, and his wife Katharina settled in the Volga German colony of Louis on 14 June 1766. They are recorded there on the 1767 census in Household No. 11.
In 1788, Hubertus Schubert and his family moved from Louis to Mariental.
The 1767 census records that Hubertus Schubert came from the German village of Saargemünd in the region of Lothringen.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Mt24, Mv1571.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 82.