It was the early 1950s when Cecil Parris put the small southern Tennessee town of Savannah on the map. Parris ran a toy-gun business in Savannah, but his return packages often got sent to that other Savannah in Georgia. So Parris, a catfishing enthusiast, visited the local post office and convinced them to add “Catfish Capital of the World” to the postmark used to cancel mail. The title stuck, and it's as appropriate today as it was half a century ago.
http://www.outdoorlife.com/node/45412