List of ambassadors of the United States to Thailand
Ambassadors

List of ambassadors of the United States to Thailand

Section Title: Ambassadors
Table Section Text: None

Name	Portrait	Career Status	Title	Appointed	Presentation of Credentials	Termination of Mission	Comment

John A. Halderman	Minister Resident/Consul General	July 13, 1882	October 23, 1882	Left post April 1, 1885

Jacob T. Child	Minister Resident/Consul General	March 9, 1886	June 5, 1886	Presented recall, January 17, 1891	Note: President Harrison nominated Alexander C. Moore for the ministerial post on July 9, 1890, but Moore declined the appointment.

Sempronius H. Boyd	-	Minister Resident/Consul General	October 1, 1890	January 17, 1891	Relinquished charge, June 13, 1892

John Barrett	-	Minister Resident/Consul General	February 14, 1894	November 15, 1894	Presented recall, April 26, 1898

Hamilton King	Minister Resident/Consul General	January 14, 1898	April 26, 1898	April 27, 1903

Hamilton King	Envoy Extraordinary and Minister Plenipotentiary	April 27, 1903	July 3, 1903	Died at post September 2, 1912

Fred W. Carpenter	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	September 12, 1912	January 22, 1913	Left post November 16, 1913	President Wilson nominated Alexander Sweek of Oregon for the post in 1913 but Sweek’s nomination was not confirmed by the United States Senate.

William H. Hornibrook	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	February 12, 1915	May 31, 1915	Presented recall, October 24, 1916

George Pratt Ingersoll	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	August 8, 1917	November 24, 1917	Left post June 23, 1918

George W. P. Hunt	-	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	May 18, 1920	September 6, 1920	Left post October 1, 1921

Edward E. Brodie	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	October 8, 1921	January 31, 1922	Left post May 2, 1925

William E. Russell	Career FSO	Envoy Extraordinary and Minister Plenipotentiary	September 28, 1925	January 9, 1926	Left post January 7, 1927

Harold Orville MacKenzie	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	March 3, 1927	June 28, 1927	Left post March 29, 1930

Arthur H. Geissler	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	December 16, 1929	—	—

David E. Kaufman	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	June 12, 1930	December 9, 1930	Left post June 15, 1933

James Marion Baker	-	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	August 30, 1933	December 9, 1933	Left post May 2, 1936

Edwin L. Neville	Career FSO	Envoy Extraordinary and Minister Plenipotentiary	May 28, 1937	October 2, 1937	Left post May 1, 1940	Note: Siam changed its name to Thailand in 1939, but ambassadors were commissioned to Siam until 1954.

Hugh Gladney Grant	Political appointee	Envoy Extraordinary and Minister Plenipotentiary	April 3, 1940	August 20, 1940	Left post August 30, 1941

Willys R. Peck	Career FSO	Envoy Extraordinary and Minister Plenipotentiary	August 19, 1941	September 16, 1941	Japanese forces occupied Bangkok, December 8, 1941	Note: Thailand declared war on the United States January 25, 1942. Ambassador Peck was initially interned and then freed.

Charles W. Yost	-	Career FSO	Chargé d’Affaires	Not commissioned	A letter of credence was sent to Yost by telegram, October 16, 1945.	Superseded by commissioned envoy July 4, 1946

Edwin F. Stanton	Career FSO	Envoy Extraordinary and Minister Plenipotentiary	April 27, 1946	July 4, 1946	Promoted to Ambassador Extraordinary and Plenipotentiary April 10, 1947.	Note: The legation in Bangkok was raised to embassy status March 18, 1947. At the same time the envoy was promoted to ambassador.

Edwin F. Stanton	Career FSO	Ambassador Extraordinary and Plenipotentiary	April 10, 1947	May 9, 1947	Left post June 30, 1953	Note: Hereafter ambassadors were commissioned to Thailand rather than Siam, as previous envoys had been.

William J. Donovan	-	Political appointee	Ambassador Extraordinary and Plenipotentiary	August 3, 1953	September 4, 1953	Left post August 21, 1954

John E. Peurifoy	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	September 15, 1954	December 3, 1954	Died near Hua Hin, August 12, 1955

Max Waldo Bishop	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	December 3, 1955	January 9, 1956	Left post January 6, 1958

U. Alexis Johnson	Career FSO	Ambassador Extraordinary and Plenipotentiary	January 30, 1958	February 14, 1958	Left post April 10, 1961

Kenneth Todd Young	Political appointee	Ambassador Extraordinary and Plenipotentiary	March 29, 1961	June 22, 1961	Left post August 19, 1963

Graham A. Martin	Career FSO	Ambassador Extraordinary and Plenipotentiary	September 10, 1963	November 7, 1963	Left post September 9, 1967

Leonard S. Unger	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	August 11, 1967	October 4, 1967	Left post November 19, 1973

William R. Kintner	Political appointee	Ambassador Extraordinary and Plenipotentiary	September 28, 1973	November 29, 1973	Left post March 15, 1975

Charles S. Whitehouse	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	May 8, 1975	May 30, 1975	Left post June 19, 1978

Morton I. Abramowitz	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	June 27, 1978	August 9, 1978	Left post July 31, 1981

John Gunther Dean	Career FSO	Ambassador Extraordinary and Plenipotentiary	October 1, 1981	October 26, 1981	Left post June 6, 1985

William Andreas Brown	Career FSO	Ambassador Extraordinary and Plenipotentiary	June 6, 1985	July 5, 1985	Left post August 5, 1988

Daniel Anthony O'Donohue	Career FSO	Ambassador Extraordinary and Plenipotentiary	July 11, 1988	August 13, 1988	Left post August 10, 1991

David Floyd Lambertson	Career FSO	Ambassador Extraordinary and Plenipotentiary	July 22, 1991	September 24, 1991	Left post August 25, 1995

William H. Itoh	Career FSO	Ambassador Extraordinary and Plenipotentiary	December 19, 1995	February 20, 1996	Left post February 1, 1999

Richard E. Hecklinger	Career FSO	Ambassador Extraordinary and Plenipotentiary	December 1, 1998	March 9, 1999	Left post December 21, 2001

Darryl N. Johnson	Darryl N. Johnson.JPEG	Career FSO	Ambassador Extraordinary and Plenipotentiary	November 26, 2001	March 29, 2002	Left post December 28, 2004

Ralph Leo Boyce	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	July 2, 2004	March 9, 2005	Left post, July 21, 2007

Eric G. John	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	August 3, 2007	January 8, 2008	Left post September 30, 2010

Kristie A. Kenney	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	December 9, 2010	January 8, 2011	Left post November 6, 2014

Glyn T. Davies	-	Career FSO	Ambassador Extraordinary and Plenipotentiary	August 6, 2015	October 2, 2015	Left post September 27, 2018

Sentence(s)

Boyd was appointed U.S. Minister and Consul General in 1890, serving until 1892.

final_sentence: Boyd was appointed U.S. Minister and Consul General in 1890, serving until 1892.