Johann Haag, a farmer, his wife Katharina Herod, and son Johannes (age 4) are recorded on the 1767 census of Köhler in Household No. 20. They had settled there on 10 August 1767.
Johannes Haag and his family are recorded on the 1798 census of Köhler in Household No. Kl06.
Jakob Hack and his family are recorded on the 1857 census of Köhler in Household No. 133 along with a note that they relocated to the daughter colony of Josefstal in 1852.
Jakob Hack [sic] from Köhler and his family are recorded on the 1857 census of Josefstal in Household No. 6.
The 1767 census records that Johann Haag came from the German region of Fulda.
- 1857 Josefstal Census (Household No. 6).
- 1857 Köhler Census (Household No. 133).
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga: Economy, Population, and Agriculture (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Kl06.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 364.