Prehistoric cultural affiliation(s) include Plains Woodland-Besant, Mandan, Hidatsa and Crow dating back to 4999 BC.
Several famous people are associated with these Mercer County historic places including George Catlin and John J. Audubon.
Some of the country's most noteable architects helped create the Mercer County places including Dibley and Robinson, Frederick Walcott Kieth, Chase & Westlin, G.H. Korupp, William D. Gillespie and Herman Leonard. Prominent architectural styles found in Mercer Country are Art Deco, International Style and Late 19th And Early 20th Century American Movements.