The famous person Ewing Quincy is associated with one of more of the Assumption County historic places.
Some of the country's most noteable architects helped create the Assumption County places including Henry Howard, George Ament, Lewman, M.T., & Co., Frank Wills, Paul Andry, Wilson Grisamore, Harrod & Andry, F. B. Dicharry and C.C. Stewart. Prominent architectural styles found in Assumption Country are Gothic, Greek Revival and Italianate.