Christoph Long, a farmer, and his wife Kunigunda are recorded on an appendix to the 1767 census of Paulskaya in Household No. 97. They had arrived there on 3 August 1767.
The 1767 census records that Christoph Long came from the German village of Eltmann.
There are no known surviving male lines of this Long family among the Volga German colonies.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Der Göttinger Arbeitskreis, 2005): 369.