William I. Buchanan
Appointment: Dec 17, 1903
Termination of Mission: Left Panama Feb 2, 1904
Note: Buchanan had presented credentials as Envoy Extraordinary and Minister Plenipotentiary on special mission in Dec 1903; he received new credentials as Envoy Extraordinary and Minister Plenipotentiary only a few days before he was to leave Panama and apparently did not present them. He ceased to act "on special mission," however, and conducted business in the capacity of Envoy Extraordinary and Minister Plenipotentiary until his departure.
John Barrett
Appointment: Mar 17, 1904
Presentation of Credentials: Jul 22, 1904
Termination of Mission: Left Panama May 13, 1905
Charles E. Magoon
Appointment: Jul 3, 1905
Presentation of Credentials: Aug 7, 1905
Termination of Mission: Left post Sep 25, 1906
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 16, 1905.
Herbert G. Squiers
Appointment: Oct 20, 1906
Presentation of Credentials: Nov 8, 1906
Termination of Mission: Left post Aug 3, 1909
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 6, 1906.
R. S. Reynolds Hitt
Appointment: Dec 21, 1909
Presentation of Credentials: Mar 26, 1910
Termination of Mission: Presented recall, Jul 19, 1910
Thomas C. Dawson
Appointment: Jun 24, 1910
Presentation of Credentials: Sep 24, 1910
Termination of Mission: Left Panama Dec 1, 1910
H. Percival Dodge
Appointment: Jul 6, 1911
Presentation of Credentials: Nov 9, 1911
Termination of Mission: Left post Jun 10, 1913
William Jennings Price
Appointment: Aug 20, 1913
Presentation of Credentials: Oct 11, 1913
Termination of Mission: Presented recall, Dec 28, 1921
John Glover South
Appointment: Oct 8, 1921
Presentation of Credentials: Dec 28, 1921
Termination of Mission: Left Panama Jan 5, 1930
Roy T. Davis
Appointment: Dec 16, 1929
Presentation of Credentials: Mar 14, 1930
Termination of Mission: Left Panama Sep 20, 1933
Antonio C. Gonzalez
Appointment: Aug 28, 1933
Presentation of Credentials: Oct 11, 1933
Termination of Mission: Left Panama Jan 9, 1935
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 15, 1934.
George T. Summerlin
Appointment: Dec 10, 1934
Note: Commissioned during a recess of the Senate; did not serve under this appointment.
George T. Summerlin
Appointment: Jan 22, 1935
Presentation of Credentials: Mar 8, 1935
Termination of Mission: Left post Jul 7, 1937
Frank P. Corrigan
Appointment: Aug 9, 1937
Presentation of Credentials: Sep 2, 1937
Termination of Mission: Left post Jun 14, 1939
William Dawson
Appointment: Mar 23, 1939
Presentation of Credentials: Jul 14, 1939
Termination of Mission: Left Panama Apr 21, 1941
Edwin C. Wilson
Appointment: Feb 11, 1941
Presentation of Credentials: May 23, 1941
Termination of Mission: Left post Sep 23, 1943
Avra M. Warren
Appointment: Mar 21, 1944
Presentation of Credentials: Jun 22, 1944
Termination of Mission: Left post Jan 5, 1945
R. Henry Norweb
Appointment: Feb 9, 1945
Note: Did not serve under this appointment.
Frank T. Hines
Appointment: Aug 17, 1945
Note: Commissioned during a recess of the Senate; did not serve under this appointment.
Appointment: Sep 14, 1945
Presentation of Credentials: Nov 1, 1945
Termination of Mission: Left post Feb 20, 1948
Monnett B. Davis
Appointment: Feb 26, 1948
Presentation of Credentials: May 28, 1948
Termination of Mission: Left post Jan 24, 1951
John C. Wiley
Appointment: Jun 20, 1951
Presentation of Credentials: Jul 25, 1951
Termination of Mission: Left post Nov 27, 1953
Selden Chapin
Appointment: Oct 1, 1953
Presentation of Credentials: Jan 22, 1954
Termination of Mission: Left post May 29, 1955
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 26, 1954.
Julian F. Harrington
Appointment: Jul 27, 1955
Presentation of Credentials: Aug 30, 1955
Termination of Mission: Left post Jul 14, 1960
Joseph S. Farland
Appointment: Jun 24, 1960
Presentation of Credentials: Aug 29, 1960
Termination of Mission: Left post Aug 31, 1963
Note: Wallace W. Stuart was serving as Chargé d'Affaires ad interim when Panama severed diplomatic relations with the U.S., Jan 10, 1964. The Embassy in Panama was reestablished Apr 3, 1964, with Henry L. Taylor as Chargé d'Affaires ad interim.
Jack Hood Vaughn
Appointment: Apr 8, 1964
Presentation of Credentials: May 6, 1964
Termination of Mission: Left Panama Feb 27, 1965
Charles W. Adair, Jr.
Appointment: May 6, 1965
Presentation of Credentials: May 13, 1965
Termination of Mission: Left post Sep 6, 1969
Robert M. Sayre
Appointment: Sep 15, 1969
Presentation of Credentials: Oct 31, 1969
Termination of Mission: Left post Mar 14, 1974
Frank T. Bow
Appointment: Sep 11, 1972
Note: Died in the U.S. before taking oath of office.
William J. Jorden
Appointment: Feb 11, 1974
Presentation of Credentials: Apr 17, 1974
Termination of Mission: Left post Aug 25, 1978
Ambler Holmes Moss, Jr.
Appointment: Sep 23, 1978
Presentation of Credentials: Oct 6, 1978
Termination of Mission: Left post Jul 15, 1982
Edward Ellis Briggs
Appointment: Sep 30, 1982
Presentation of Credentials: Oct 29, 1982
Termination of Mission: Left post Feb 24, 1986
Arthur H. Davis
Appointment: Mar 4, 1986
Presentation of Credentials: Apr 4, 1986
Termination of Mission: Left post Jan 3, 1990
Deane Roesch Hinton
Appointment: Jan 2, 1990
Presentation of Credentials: Jan 9, 1990
Termination of Mission: Left post Feb 12, 1994
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Apr 6, 1990.
Note: Oliver P. Garza served as Chargé d'Affaires ad interim, Feb 1994–Nov 1995.
Robert A. Pastor
Note: Nomination of June 8, 1994 not acted upon by the Senate; withdrawn Jan 31, 1995.
William J. Hughes
Appointment: Oct 3, 1995
Presentation of Credentials: Nov 7, 1995
Termination of Mission: Left post Oct 13, 1998
Simon Ferro
Appointment: Oct 22, 1998
Presentation of Credentials: Feb 26, 1999
Termination of Mission: Left post Mar 1, 2001
Linda Ellen Watt
Appointment: Nov 15, 2002
Presentation of Credentials: Dec 17, 2002
Termination of Mission: Left post, Jun 3, 2005
William Alan Eaton
Appointment: May 31, 2005
Presentation of Credentials: Sep 9, 2005
Termination of Mission: Left post August 2008
Former U.S. Ambassadors to Panama
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