Prehistoric cultural affiliation(s) include Middle Archaic, Late Woodland and Early--Middle Woodland dating back to 6999 BC.
Several famous people are associated with these Middlesex County historic places including Richard Henry Dana and Marian Roby Case.
Some of the country's most noteable architects helped create the Middlesex County places including Paul Moody, Charles Eliot, Kirk Boot, Olmstead Brothers, Anne Whitney, Rutan & Coolidge Shepley, Hartley Dennett, Philip Johnson, Olmstead Bros. and Hartwell & Richardson. Prominent architectural styles found in Middlesex Country are Late Victorian, Federal and Greek Revival.