Name Portrait Home state Presented credentials Terminated Karl L. Rankin Maine April 2, 1953 December 30, 1957 Everett F. Drumright Oklahoma March 8, 1958 March 8, 1962 Alan Goodrich Kirk New York July 5, 1962 January 18, 1963 Jerauld Wright District of Columbia June 29, 1963 July 25, 1965 Walter P. McConaughy Alabama June 28, 1966 April 4, 1974 Leonard S. Unger Maryland May 25, 1974 January 19, 1979