1965–1967 President Lyndon B. Johnson Preceded by Nicholas Katzenbach Succeeded by Warren Christopher Born December 18, 1927 ( 1927-12-18 ) (age 83) Dallas, Texas , United States Political party Democratic Spouse(s) Georgia Welch [1] Alma mater University of Texas-Austin ( B.A. ) University of Chicago ( M.A. , J.D. ) Military service Service/branch United States Marine