Johannes Kaiser settled in the Volga German colony of Müller on 16 August 1767 and is recorded there on the 1767 census in Household No. 29 along with Anna Katharina Müller and her family. The 1767 census does not record a relationship between the Kaiser and Müller families.
A note on the 1767 census records that Johannes Kaiser relocated to the colony of Grimm in 1768.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 3 (Göttingen: Göttinger Arbeitskreis, 2005): 182.