Christoph Müller and his wife Christina settled in the Volga German colony of Mariental. Christoph died and Christina remarried to Peter Hertz. She is recorded with him on the 1767 census of Mariental in Household No. 40.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 105.