In 1786, widow Elisabeth Bock and her children moved from Zug to Schaffhausen. They are recorded on the 1798 census of Schaffhausen in Household No. Sh14.
- 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): Sh14, Mv3061.