State of Residency: Missouri
Title: Minister Resident/Consul General
Appointment: Jul 13, 1882
Presentation of Credentials: Oct 23, 1882
Termination of Mission: Left post Apr 1, 1885
Note: Commissioned to Siam.
Name: Jacob T. Child
State of Residency: Missouri
Title: Minister Resident/Consul General
Appointment: Mar 9, 1886
Presentation of Credentials: Jun 5, 1886
Termination of Mission: Presented recall, Jan 17, 1891
Note: Commissioned to Siam.
Name: Alexander C. Moore
State of Residency: West Virginia
Title: Minister Resident/Consul General
Appointment: Jul 9, 1890
Note: Declined appointment.
Name: Sempronius H. Boyd
State of Residency: Missouri
Title: Minister Resident/Consul General
Appointment: Oct 1, 1890
Presentation of Credentials: Jan 17, 1891
Termination of Mission: Relinquished charge, Jun 13, 1892
Note: Commissioned to Siam.
Name: John Barrett
State of Residency: Oregon
Title: Minister Resident/Consul General
Appointment: Feb 14, 1894
Presentation of Credentials: Nov 15, 1894
Termination of Mission: Presented recall, Apr 26, 1898
Note: Commissioned to Siam.
Name: Hamilton King
State of Residency: Michigan
Title: Minister Resident/Consul General
Appointment: Jan 14, 1898
Presentation of Credentials: Apr 26, 1898
Termination of Mission: Promoted to Envoy Extraordinary and Minister Plenipotentiary
Note: Commissioned to Siam.
Name: Hamilton King
State of Residency: Michigan
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Apr 27, 1903
Presentation of Credentials: Jul 3, 1903
Termination of Mission: Died at post Sep 2, 1912
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Nov 16, 1903. Commissioned to Siam.
Name: Fred W. Carpenter
State of Residency: California
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Sep 12, 1912
Presentation of Credentials: Jan 22, 1913
Termination of Mission: Left post Nov 16, 1913
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Mar 1, 1913. Commissioned to Siam.
Name: Alexander Sweek
State of Residency: Oregon
Title: Envoy Extraordinary and Minister Plenipotentiary
Note: Not commissioned; nomination not confirmed by the Senate.
Name: William H. Hornibrook
State of Residency: Oregon
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Feb 12, 1915
Presentation of Credentials: May 31, 1915
Termination of Mission: Presented recall, Oct 24, 1916
Note: Commissioned to Siam.
Name: George Pratt Ingersoll
State of Residency: Connecticut
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 8, 1917
Presentation of Credentials: Nov 24, 1917
Termination of Mission: Left post Jun 23, 1918
Note: Commissioned to Siam.
Name: George W. P. Hunt
State of Residency: Arizona
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: May 18, 1920
Presentation of Credentials: Sep 6, 1920
Termination of Mission: Left post Oct 1, 1921
Note: Commissioned to Siam.
Name: Edward E. Brodie
State of Residency: Oregon
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Oct 8, 1921
Presentation of Credentials: Jan 31, 1922
Termination of Mission: Left post May 2, 1925
Note: Commissioned to Siam.
Name: William E. Russell
State of Residency: District of Columbia
Foreign Service officer
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Sep 28, 1925
Presentation of Credentials: [Jan 9, 1926]
Termination of Mission: Left post Jan 7, 1927
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 17, 1925. Commissioned to Siam. Officially received on Jan 9, 1926.
Name: Harold Orville MacKenzie
State of Residency: New Jersey
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 3, 1927
Presentation of Credentials: Jun 28, 1927
Termination of Mission: Left post Mar 29, 1930
Note: Commissioned to Siam.
Name: Arthur H. Geissler
State of Residency: Oklahoma
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Dec 16, 1929
Note: Commissioned to Siam. Took oath of office, but did not proceed to post.
Name: David E. Kaufman
State of Residency: Pennsylvania
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jun 12, 1930
Presentation of Credentials: Dec 9, 1930
Termination of Mission: Left post Jun 15, 1933
Note: Commissioned to Siam.
Name: James Marion Baker
State of Residency: South Carolina
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 30, 1933
Presentation of Credentials: Dec 9, 1933
Termination of Mission: Left post May 2, 1936
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 15, 1934. Commissioned to Siam.
Name: Edwin L. Neville
State of Residency: Ohio
Foreign Service officer
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: May 28, 1937
Presentation of Credentials: Oct 2, 1937
Termination of Mission: Left post May 1, 1940
Note: Commissioned to Siam.
Name: Hugh Gladney Grant
State of Residency: Alabama
Non-career appointee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Apr 3, 1940
Presentation of Credentials: Aug 20, 1940
Termination of Mission: Left post Aug 30, 1941
Name: Willys R. Peck
State of Residency: California
Foreign Service officer
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 19, 1941
Presentation of Credentials: Sep 16, 1941
Termination of Mission: Japanese forces occupied Bangkok, Dec 8, 1941
Note: Thailand declared war on the United States Jan 25, 1942. Peck, having been interned, left post Jun 29, 1942.
Name: Charles W. Yost
State of Residency: New York
Foreign Service officer
Title: Chargé d'Affaires
Appointment: [see note below]
Presentation of Credentials: Jan 5, 1946
Termination of Mission: Superseded, Jul 4, 1946
Note: Not commissioned; letter of credence sent to Yost by telegram, Oct 16, 1945.
Name: Edwin F. Stanton
State of Residency: California
Foreign Service officer
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Apr 27, 1946
Presentation of Credentials: Jul 4, 1946
Termination of Mission: Promoted to Ambassador Extraordinary and Plenipotentiary
Note: Commissioned to Siam.
Name: Edwin F. Stanton
State of Residency: California
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Apr 10, 1947
Presentation of Credentials: May 9, 1947
Termination of Mission: Left post Jun 30, 1953
Note: Commissioned to Siam. The Legation in Bangkok had been raised to Embassy status Mar 18, 1947.
Name: William J. Donovan
State of Residency: New York
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Aug 3, 1953
Presentation of Credentials: Sep 4, 1953
Termination of Mission: Left post Aug 21, 1954
Name: John E. Peurifoy
State of Residency: South Carolina
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 15, 1954
Presentation of Credentials: Dec 3, 1954
Termination of Mission: Died near Hua Hin, Aug 12, 1955
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 3, 1954.
Name: Max Waldo Bishop
State of Residency: Arkansas
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 3, 1955
Presentation of Credentials: Jan 9, 1956
Termination of Mission: Left post Jan 6, 1958
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 18, 1956.
Name: U. Alexis Johnson
State of Residency: California
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jan 30, 1958
Presentation of Credentials: Feb 14, 1958
Termination of Mission: Left post Apr 10, 1961
Name: Kenneth Todd Young
State of Residency: New York
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Mar 29, 1961
Presentation of Credentials: Jun 22, 1961
Termination of Mission: Left post Aug 19, 1963
Name: Graham A. Martin
State of Residency: Florida
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 10, 1963
Presentation of Credentials: Nov 7, 1963
Termination of Mission: Left post Sep 9, 1967
Name: Leonard Unger
State of Residency: Maryland
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Aug 11, 1967
Presentation of Credentials: Oct 4, 1967
Termination of Mission: Left post Nov 19, 1973
Name: William R. Kintner
State of Residency: Pennsylvania
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 28, 1973
Presentation of Credentials: Nov 29, 1973
Termination of Mission: Left post Mar 15, 1975
Name: Charles S. Whitehouse
State of Residency: Virginia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 8, 1975
Presentation of Credentials: May 30, 1975
Termination of Mission: Left post Jun 19, 1978
Name: Morton I. Abramowitz
State of Residency: Massachusetts
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jun 27, 1978
Presentation of Credentials: Aug 9, 1978
Termination of Mission: Left post Jul 31, 1981
Name: John Gunther Dean
State of Residency: New York
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Oct 1, 1981
Presentation of Credentials: Oct 26, 1981
Termination of Mission: Left post Jun 6, 1985
Name: William Andreas Brown
State of Residency: New Hampshire
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jun 6, 1985
Presentation of Credentials: Jul 5, 1985
Termination of Mission: Left post Aug 5, 1988
Name: Daniel Anthony O'Donohue
State of Residency: Virginia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jul 11, 1988
Presentation of Credentials: Aug 13, 1988
Termination of Mission: Left post Aug 10, 1991
Name: David Floyd Lambertson
State of Residency: Kansas
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jul 22, 1991
Presentation of Credentials: Sep 24, 1991
Termination of Mission: Left post Aug 25, 1995
Name: William H. Itoh
State of Residency: New Mexico
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 19, 1995
Presentation of Credentials: Feb 20, 1996
Termination of Mission: Left post Feb 1, 1999
Name: Richard E. Hecklinger
State of Residency: Virginia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 1, 1998
Presentation of Credentials: Mar 9, 1999
Termination of Mission: Left post Dec 21, 2001
Name: Darryl N. Johnson
State of Residency: Washington
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Nov 26, 2001
Presentation of Credentials: Mar 29, 2002
Termination of Mission: Left post Dec 28, 2004
Name: Ralph Leo Boyce
State of Residency: Virginia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jul 2, 2004
Presentation of Credentials: Mar 9, 2005
Termination of Mission: Left post, Jul 21, 2007
Name: Eric G. John
State of Residency: Indiana
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Aug 3, 2007
Presentation of Credentials:
Termination of Mission:
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