Prehistoric cultural affiliation(s) include Adena, Fort Ancient, Baum Phase, Hopewell, Middle Mississippian, Ft Ancient Tradition: Baum Phase, Scioto Hopewell and Archaic dating back to 12999 BC.
Several famous people are associated with these Ross County historic places including Thomas Worthington, George Renick, Dard Hunter and Joseph Harness.
Some of the country's most noteable architects helped create the Ross County places including Benjamin H. Latrobe, John Cook, H.S. Fullerton Rev., G.W. Dun, Gershon Anderson, Presley Morris, Robert Matthews, Garlinghouse Company, John Jr. Buchwalter and Smith Bridge Comp.. Prominent architectural styles found in Ross Country are Greek Revival, Federal and Colonial Revival.