The Caroline Belvin Literary Society celebrated its 30th birthday in 1959 by being installed as Delta Mu chapter. The group had held a prominent position for years at Sam Houston State, which is the oldest state-supported teacher training institution west of the Mississippi River. Sorority dormitories were built to house six sororities. Delta Mu has continued to occupy the strongest leadership position on campus. Charter members Paula Smith Moak, long-time Convention Secretary, and Janis Childers served as advisors and international officers for many years. Lois Hencey Vance, Delta Beta - Lamar, was a long-serving international officer and chapter advisor. The chapter won Golden Lion in 2009.