Prehistoric cultural affiliation(s) include Mississippian, Coles Creek and Plaquemines dating back to 999 BC.
Several famous people are associated with these Jefferson County historic places including Jean Lafitte, Victorin A. Pitre and Conrad A. Buchler.
Some of the country's most noteable architects helped create the Jefferson County places including Lieut. H.G. Wright, Col. Joseph Gilbert Totten, R. Gould Co., Southern Pacific Railroad, William Richard Burk, James McNally, R.S. Soule, W.R. Burke, William T. Nolan and J.E. Louviere. Prominent architectural styles found in Jefferson Country are Bungalow/Craftsman, Classical Revival and Colonial Revival.