Sigma Gamma Rho Sorority, Inc. was organized on November 12, 1922 in Indianapolis, Indiana by seven school teachers: Mary Lou Allison Little, Dorothy Hanley Whiteside, Vivian White Marbury, Nannie Mae Gahn Johnson, Hattie Mae Dulin Redford, Bessie Mae Downey Martin and Cubena McClure.  The group became an incorporated national collegiate sorority on December 30, 1929, when a charter was granted to Alpha chapter at Butler University.