Prehistoric cultural affiliation(s) include Mississippian, Woodland and Archaic dating back to 8999 BC.
The famous person Gustave Meissner is associated with one of more of the Jefferson County historic places.
Some of the country's most noteable architects helped create the Jefferson County places including J.H. Hertnel and Ephraim Williams. Prominent architectural styles found in Jefferson Country are Bungalow/Craftsman, Gothic Revival and Late 19th And Early 20th Century American Movements.