William Averell Harriman (1891–1986)

Non-career appointee
State of Residence: New York

1. Ambassador Extraordinary and Plenipotentiary (Russia)
   Appointed: October 7, 1943
   Presentation of Credentials: October 23, 1943
   Termination of Mission: Left post on January 24, 1946
   • Commissioned to the Union of Soviet Socialist Republics.
2. Ambassador Extraordinary and Plenipotentiary (United Kingdom)
   Appointed: April 2, 1946
   Presentation of Credentials: April 30, 1946
   Termination of Mission: Left post on October 1, 1946
3. Director of the Mutual Security Agency
   Appointed: October 19, 1951
   Entry on Duty: October 31, 1951
   Termination of Appointment: January 20, 1953
4. Ambassador at Large
   Appointed: February 6, 1961
   Entry on Duty: February 13, 1961
   Termination of Appointment: December 3, 1961
5. Assistant Secretary of State for East Asian and Pacific Affairs
   Appointed: November 29, 1961
   Entry on Duty: December 4, 1961
   Termination of Appointment: April 3, 1963
   • Commissioned during a recess of the Senate; recommissioned after confirmation on Mar 5, 1962.
6. Under Secretary of State for Political Affairs
   Appointed: April 4, 1963
   Entry on Duty: April 4, 1963
   Termination of Appointment: March 17, 1965
7. Ambassador at Large
   Appointed: March 11, 1965
   Entry on Duty: March 18, 1965
   Termination of Appointment: January 20, 1969