Prehistoric cultural affiliation(s) include Native American, Paleo-Indian, Folsom Period, Plains Woodland, Late Prehistoric and Southern Plains Village dating back to 499 BC.
Some of the country's most noteable architects helped create the Harper County places including Maurice Jayne, H.A. Monhollon, William Shaw and Settler's Milling Canal & Reserv.. Prominent architectural styles found in Harper Country are Classical Revival.