There is an Andreas Schäfer recorded on the 1798 census of Warenburg in Household No. Wr020. He was born approximately 1750 and does not appear to fit into any of the other Schäfer families of Warenburg.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Wr020.