Prehistoric cultural affiliation(s) include Late Woodland and Early Mississippian dating back to 500.
Several famous people are associated with these St. Clair County historic places including Gov. Augustus Chaplin French and Malburn Stephens.
Some of the country's most noteable architects helped create the St. Clair County places including Albert Kahn, Capt. Clinton Edgar and Albert B. Frankel. Prominent architectural styles found in St. Clair Country are Colonial Revival, Italianate and Queen Anne.