The famous person Olof Johnson is associated with one of more of the Henry County historic places.
Some of the country's most noteable architects helped create the Henry County places including Hirsch and Watson Helfensteller, Frederick Frances, Volk Construction Co., J.W. Ross, Eric Berglof, Patton and Miller, B.K. Gibson, Alexander K. Clark, Price & Payne and J.C. Ericson. Prominent architectural styles found in Henry Country are Greek Revival, Romanesque and Classical Revival.