Johannes Zitzer, a farmer, his wife Barbara, and son Adam Christian are recorded on the 1767 census of Schulz in Household No. 27. They had settled there on 15 June 1767.
He is recorded on the 1798 census of Schulz in Household No. Sz05. Christian Zitzer and his family are recorded on the 1798 census of Schulz in Household No. Sz17.
In 1795, Johannes Zitzer (son of the previous Johannes Zitzer) moved from Schulz to Schwed.
Johann Zitzer from Schulz and his family are recorded on the1798 census of Stahl am Karaman in Household No. Sk13.
The 1767 census records that Johannes Zitzer came from the German village of Laubach.
- 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): Sz05, Sz09, Sz17, Sk13, Mv2668.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 4 (Göttingen: Göttinger Arbeitskreis, 2008): 126.