Sigma Gamma Rho Sorority, Inc. was founded on November 12, 1922 at Butler University in Indianapolis, Indiana, by seven school teachers; Mary Lou Allison Gardner Little, Dorothy Hanley Whiteside, Vivian White Marbury, Nannie Mae Gahn Johnson, Hattie Mae Annette Dulin Redford, Bessie Mae Downey Rhoades Martin and Cubena McClure. ​

It is the mission of Sigma Gamma Rho Sorority, Inc. to enhance the quality of life for women and their families in the U.S. and globally through community service, civil, and social action. Our goal is to achieve greater progress in the areas of education, health awareness, and leadership development. Our members, affiliates, staff, and community partners work to create and support initiatives that align with our vision.