Pioneer Flour Mills The City of San Antonio
Pioneer Flour Mills was initially founded as the Guenther Mill by Carl Hilmar Guenther, a millwright who immigrated to the United States from Germany in the late 1840s. Guenther built his first mill in 1851 in Fredericksburg and later relocated it one mile south of San Antonio in 1859. Guenther's first mill in San Antonio was located along the San Antonio River across from King William ...