Anton Windholz, a craftsman (Handwerker), and his wife Maria Theresia settled in the Volga German colony of Graf on 10 June 1766. They are recorded there on the 1767 census in Household No. 6 along with Anton Andreas Gerber (age 10), Maria Theresia's brother.
By 1834, Katharina Vogel, the widow of Lorenz Windholz, and her children had moved to the colony of Herzog. Lorenz's brother Joseph also relocated to the colony of Herzog before 1834.
The 1767 census records that Anton Windholz came from the German village of Regensburg.
- 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): Gf07, Gf40.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 60.