Albert Olin Singleton, professor of surgery, was born in Waxahachie, Texas, on July 16, 1882, the son of Joe W. and Lydia (Moore) Singleton. He received a bachelor's degree from the University of Texas (1905) and a medical degree from the University of Texas Medical Branch (1910). After an internship at John Sealy Hospital he was appointed instructor of surgery at UTMB (1911). In 1927 he became professor of surgery and chairman of the department, a position he held for twenty years. He served on the UTMB Executive Committee (1927–39) and the John Sealy Hospital Board of Managers (1925–40). Singleton was a member of the Galveston County Medical Society, the Texas Medical Association, and the American Medical Association. He was vice president of the American College of Surgeons (1930–31) and was one of the founders of the American Board of Surgery (1937). He served as president of the Texas Surgical Society (1930–31) and the Southern Surgical Association (1938–39), and as vice president of the American Surgical Association (1944). Singleton wrote more than fifty scientific articles and was a member of the editorial boards of Surgery, and Surgery, Gynecology, and Obstetrics. To honor his legacy as teacher and clinician, trainees and colleagues founded the Singleton Surgical Society in 1953, a society that meets annually for discussion of professional papers. UTMB also annually awards the Singleton Surgical Award to the senior medical student who has excelled in surgery studies. In 1912 Singleton married Willie Dean Bivens of Corsicana. They had two sons, Albert, Jr., and Edward, both of whom earned medical degrees from UTMB. Singleton died in Galveston on June 12, 1947.