Gottfried Tag (age 17) is recorded on the 1767 census of Jost in Household No. 74 along with his stepfather Rudolph Krieger. They had settled there on 5 July 1767.
Gottfried Tag and his family are recored on the 1798 census of Jost in Household No. Jo33.
The death of Gottfried Tag in 1829 is recorded on the 1834 census of Jost in Household No. 51.
The 1767 census does not record from where Gottfried Tag came.
- 1834 Jost Census (Household No. 51).
- 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): Jo33.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 212.