1956-1963 / Dr. James R. Killian
1963-1968 / Mr. Clark H. Clifford
1968-1970 / Gen. Macwell D. Taylor, USA (Retired)
1970-1976 / Adm. George W. Anderson, Jr., USN (Retired)
1976-1977 / Mr. Leo Cherne
1982-1990 / Amb. Anne Armstrong
1990-1991 / Sen. John G. Tower
1991-1993 / Adm. Bobby Inman, USN (Retired) - Acting
1993-1994 / Adm. William J. Crowe, Jr., USN (Retired)
1994-1995 / Dr. Les Aspin