Johannes Sahlmann (age 16) and his siblings (Michael, age 14; Dorothea, age 11; Anna, age 8; Eva Elisabeth, age 3) are recorded on an appendix to the 1767 census of Paulskaya in Household No. 100 along with their stepfather Johann Friedrich Potthof. The Johann Friedrich Potthof family relocated to the colony of Katharinenstadt in 1768 and it is assumed that the Sahlmann children accompanied them.
The 1767 census does not record from where the Sahlmann children came.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 370.