Johann Friedrich Müller, born about 1749, is recorded on the 1798 census of Kratzke in Household No. Kr08. He does not appear to be connected to the other Müller families that settled in Kratzke in 1767.
- Mai, Brent Alan. 1798 Census of the German Colonies along the Volga (Lincoln, NE: American Historical Society of Germans from Russia, 1999): Kr08.