Prehistoric cultural affiliation(s) include Adena dating back to 999 BC.
Many famous people are associated with these Brown County historic places including John P. Parker, John P. Parker, Col. James Poage, Rankin Thomas, Ulysses S. Grant and Gilliland James.
Some of the country's most noteable architects helped create the Brown County places including Marietta Manufacturing Co., Samuel Rees, Jesse Grant, Emmet Hubbard Baker, unknown, Erastus Adkins, Smith Bridge Co., Hannaford,Samuel, & Sons, Otho Sutton and E Hubbard Baker. Prominent architectural styles found in Brown Country are Federal, Italianate and Late Victorian.