Sigma Gamma Rho Sorority, Inc. was organized on November 12, 1922, in Indianapolis, Indiana, by seven young educators: 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. The group became an incorporated national collegiate sorority on December 30, 1929, when a charter was granted to the Alpha chapter at Butler University.​

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The mission of Sigma Gamma Rho Sorority, Inc. is 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 education, health awareness, and leadership development. Our members, affiliates, staff, and community partners work to create and support initiatives that align with our vision.

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Sigma Gamma Rho has become an international service organization comprised of women from every profession from seven young educators. Sigma Gamma Rho offers its members opportunities to develop their unique talents through leadership training and involvement in sorority activities. Sorority activities provide an atmosphere where friendships and professional contacts are developed, leading to bonds that last a lifetime. We visualize a world in which all women and their families reach their full potential in all aspects of life and can create unlimited opportunities for future generations. Learn more about Sigma Gamma Rho Sorority, Inc.'s rich heritage by visiting the Sorority's national website www.sgrho1922.org.​​