Orphan Johann Heinrich Wurseck (age 11) is recorded on the 1767 census of Katharinenstadt in Household No. 224. He had settled there on 27 August 1767.
The 1767 census records that Johann Heinrich Wurseck came from Denmark.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 321.