Prehistoric cultural affiliation(s) include Woodland and Middle Woodland dating back to 1000 BC.
Many famous people are associated with these Marion County historic places including Mark Twain, William Henry Hatch, J.J. Cruikshank Jr., Jane Darwell, William H. Russell and Levi Barkley.
Some of the country's most noteable architects helped create the Marion County places including Mifflin E. Bell, Haynes & Barnett Barnett, Courtney Bros., John M. Patton, Moses P. Green, J.M. Patton, Malcolm S. Martin, D.W. Sullivan, P. Beuttler and Samuel O. Hendren. Prominent architectural styles found in Marion Country are Greek Revival, Italianate and Second Empire.