Christoph Bischof, a cloth weaver (Tuchweber), his wife Sophia Katharina Müller, and daughter Johanna (age 12) are recorded on the 1767 census of Katharinenstadt in Household No. 139. They had settled there on 3 August 1767.
The 1767 census records that Christoph Bischof came from the German region of Dessau.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 306.