William T. Butler, M.D., a distinguished immunologist, joined Baylor College of Medicine in 1966 and during the following decades served the College in a variety of roles, including Associate Dean and Dean of Admissions.

In 1976, he was named Acting Executive Vice President and Dean, and in 1977, he became Executive Vice President and Dean. Two years later, Butler was named President and Chief Executive Officer of the College, and served in that position for almost 17 years. During that time, he led the College in a period of unprecedented growth and national and international recognition.

He assumed the post of Chancellor in 1996, and in 2004 became Chancellor Emeritus. In Dec. 2008, Dr. Butler became Interim President.