Prehistoric cultural affiliation(s) include Late Woodland Mississippian, Patrick Phase, Et Al., Moorehead Phase and Sand Prairie Phase dating back to 500.
Many famous people are associated with these Madison County historic places including Lyman Trumbull, Col. Samuel Buckmaster, William Eliot Smith, Benjamin Stephenson, Henry Guest McPike and William Post.
Some of the country's most noteable architects helped create the Madison County places including Baxter L. Brown, Hirsch and Watson Helfensteller, Charles Spillman, Samual Morrison, Lucas Pfeiffenberger, J.W. Kennedy, R.G. Kirsh, Joseph Sr. Hlad, Alonzo Keller and W.H. Howell. Prominent architectural styles found in Madison Country are Italianate, Federal and Classical Revival.