Elliot Lee Richardson (1920–1999)

Non-career appointee
State of Residence: Massachusetts

1. Under Secretary of State
   Appointed: January 23, 1969
   Entry on Duty: January 23, 1969
   Termination of Appointment: June 23, 1970
2. Ambassador Extraordinary and Plenipotentiary (United Kingdom)
   Appointed: February 20, 1975
   Presentation of Credentials: March 21, 1975
   Termination of Mission: Left post on January 16, 1976
3. Ambassador at Large
   Appointed: February 25, 1977
   Entry on Duty: March 1, 1977
   Termination of Appointment: October 4, 1980
   • Commissioned as Ambassador at Large and Special Representative of the President at the Law of the Sea Conference, and Chief of Delegation.