It was in operation from 1941 to 1952 and all member schools were affiliated with the Wisconsin Interscholastic Athletic Association.
Logan High School in La Crosse had recently been voted out of the South Central by a 5-4 margin for reasons of competitive balance.
[1] The five schools that voted for Logan's forced exit from the South Central (Baraboo, Portage, Reedsburg, Richland Center and Wisconsin Dells) joined with five schools from the Southern Six (Edgerton, Fort Atkinson, Monroe, Stoughton and Wisconsin High) in forming the Southern Ten.
[2] Watertown, who was removed from the Southern Six prior to the merger for similar reasons to Logan's removal from the South Central,[3] competed as an independent for twelve years until the Braveland Conference was formed in 1953.
[5] The five remaining schools that were originally part of the Southern Six joined with members of the disbanded Rock River Valley League (Evansville, Jefferson, Lake Mills and Milton) and Middleton (formerly of the Madison Suburban Conference) to form the new Badger Conference.