 Every member of the current Southeastern Conference except Arkansas and Missouri, as well as six of the 15 current members of the Atlantic Coast Conference plus the University of Texas at Austin, now of the Big 12 Conference (and previously of the now defunct Southwest Conference), formerly held membership in the SIAA.The SIAA was founded on December 21, 1894, by Dr. William Dudley, a chemistry professor at Vanderbilt, at the Kimball House in Atlanta.Dudley was a member of the Vanderbilt Athletic Association, formed in 1886 with Dr. W. M. Baskerville as president.