The Sigma Gamma Rho Collection contains materials documenting nearly a century of Sigma Gamma Rho Sorority, Inc.’s history, predominately from 1946 through 2014 but including some historical information dating back to the Sorority’s founding in 1922. These materials were collected by the Sorority from the Sorority’s Grand Basilei (Sorority’s Presidents) for the purpose of documenting the history of Sigma Gamma Rho in preparation for the 100th anniversary. The collection contains many materials from the Sorority’s Biennial Boule (international meeting)—especially board and meeting minutes—along with many materials documenting the Sorority’s activities, programs, and people such as correspondence, documents, ephemera, publications, artifacts, clothing, and photographs. The major recurring names in the collection include (alphabetically): Dr. Mynora J. Bryant, Corine J. Green, Evelyn Hood, Dr. Annie Lawrence-Brown, Joann Loveless, Dr. LaRona J. Morris, Helen J. Owens, Dr. Katie K. White, and Dr. Lorraine A. Williams.

Also included in the collection are two Time Capsules: the 75th Anniversary Time Capsule, and the 100th Anniversary Time Capsule. The 7th Anniversary Time Capsule was openened in 2022, while the 100th Anniversary Time Capsule remains closed until the 125th Anniversary in 2047.