Prehistoric cultural affiliation(s) include Woodland and Archaic dating back to 8999 BC.
Several famous people are associated with these Coos County historic places including John Wingate Weeks and Frank H. Shapleigh.
Some of the country's most noteable architects helped create the Coos County places including Groton Bridge and Manufacturing Co., Samuel F. Spaulding, Charles Babbitt, Charles Alling Gifford, Berlin Iron Bridge Co., Joseph S. Hall, Maine Central Railroad, Joseph Austin Martin, Tennant/Wallace and H.M. Roy. Prominent architectural styles found in Coos Country are Bungalow/Craftsman, Greek Revival and Stick/Eastlake.