Heinrich Christoph Schulz, a merchant (Kaufmann), and his wife Anna are recorded on an appendix to the 1767 census of Katharinenstadt in Household No. 20 along with a note that they relocated to the colony of Basel in 1768.
The 1767 census records that Heinrich Christoph Schulz came from the German region of Berlin.
- Pleve, Igor. Einwanderung in das Wolgagebiet 1764-1767 Band 2 (Goettingen: Der Göttinger Arbeitskreis, 2001): 327.