Mexico

Name: Andrew Jackson
State of Residency: Tennessee
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jan 27, 1823
Note: Declined appointment.

Name: Ninian Edwards
State of Residency: Illinois
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 4, 1824
Note: Did not proceed to post.

Name: Joel R. Poinsett
State of Residency: South Carolina
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 8, 1825
Presentation of Credentials: Jun 1, 1825
Termination of Mission: Recall requested by Government of Mexico, Oct 17, 1829; left post, Jan 3, 1830.

Name: Anthony Butler
State of Residency: Mississippi
Title: Chargé d'Affaires
Appointment: Oct 12, 1829
Presentation of Credentials: Jan 29, 1830
Termination of Mission: Recall requested by Government of Mexico Oct 21, 1835; Butler did not leave post until after his successor had presented credentials.
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Mar 12, 1830.

Name: Powhatan Ellis
State of Residency: Mississippi
Title: Chargé d'Affaires
Appointment: Jan 5, 1836
Presentation of Credentials: May 11, 1836
Termination of Mission: Left post, Dec 28, 1836

Name: Powhatan Ellis
State of Residency: Mississippi
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Feb 15, 1839
Presentation of Credentials: Jul 7, 1839
Termination of Mission: Presented recall, Apr 21, 1842

Name: Waddy Thompson
State of Residency: South Carolina
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Feb 10, 1842
Presentation of Credentials: Apr 21, 1842
Termination of Mission: Left post, Mar 9–10, 1844

Name: Wilson Shannon
State of Residency: Ohio
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Apr 9, 1844
Presentation of Credentials: Sep 1, 1844
Termination of Mission: Mexico severed diplomatic relations with U.S., Mar 28, 1845; Shannon left post, May 14, 1845.

Name: John Slidell
State of Residency: Louisiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Nov 10, 1845
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 20, 1846. Proceeded to post, but did not present credentials; left post about Mar 21, 1846.

Name: Nathan Clifford
State of Residency: Maine
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jul 28, 1848
Presentation of Credentials: Oct 2, 1848
Termination of Mission: Presented recall, Sep 6, 1849

Name: Robert P. Letcher
State of Residency: Kentucky
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 9, 1849
Presentation of Credentials: Feb 7, 1850
Termination of Mission: Presented recall, Aug 2, 1852
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on May 29, 1850.

Name: Alfred Conkling
State of Residency: New York
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 6, 1852
Presentation of Credentials: Nov 30, 1852
Termination of Mission: Presented recall, Aug 17, 1853

Name: James Gadsden
State of Residency: South Carolina
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: May 24, 1853
Presentation of Credentials: Aug 17, 1853
Termination of Mission: Superseded, Oct 23, 1856
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Feb 13, 1854.

Name: John Forsyth
State of Residency: Alabama
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jul 21, 1856
Presentation of Credentials: Oct 23, 1856
Termination of Mission: Suspended political relations of the Legation with Government of Mexico, Jun 21, 1858
Note: Forsyth left post, Oct 21, 1858.

Name: Robert M. McLane
State of Residency: Maryland
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 7, 1859
Presentation of Credentials: Apr 6, 1859
Termination of Mission: Presented recall, Dec 22, 1860

Name: John B. Weller
State of Residency: California
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Nov 17, 1860
Presentation of Credentials: Jan 30, 1861
Termination of Mission: Presented recall, May 14, 1861
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 12, 1860.

Name: Thomas Corwin
State of Residency: Ohio
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 22, 1861
Presentation of Credentials: May 21, 1861
Termination of Mission: Relinquished charge, Apr 27, 1864

Note: During 1864–1867 the following officers served as Chargé d'Affaires ad interim: William H. Corwin (Apr 1864–Apr 1866) and Marcus Otterbourg (Apr 1866–Aug 1987).

Name: John A. Logan
State of Residency: State of Residency: Illinois
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Nov 14, 1865
Note: Declined appointment. Commissioned during a recess of the Senate.

Name: Lewis D. Campbell
State of Residency: Ohio
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: May 4, 1866
Note: Took oath of office and proceeded to Mexico, but did not present credentials.

Name: Marcus Otterbourg
State of Residency: Wisconsin
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jul 1, 1867
Presentation of Credentials: Aug 19, 1867
Termination of Mission: Informed Government of Mexico by note, Aug 18, 1867, that he considered his mission terminated; left post Sep 21–30, 1867.
Note: Commissioned during a recess of the Senate.

Name: John A. McClernand
State of Residency: Illinois
Title: Envoy Extraordinary and Minister Plenipotentiary
Note: Not commissioned; nomination twice rejected by the Senate.

Name: William S. Rosecrans
State of Residency: Ohio
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jul 27, 1868
Presentation of Credentials: Dec 10, 1868
Termination of Mission: Presented recall, Jun 26, 1869

Name: Thomas H. Nelson
State of Residency: Indiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Apr 16, 1869
Presentation of Credentials: Jun 26, 1869
Termination of Mission: Presented recall, Jun 16, 1873

Name: John W. Foster
State of Residency: Indiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 17, 1873
Presentation of Credentials: Jun 16, 1873
Termination of Mission: Presented recall, Mar 2, 1880

Name: Philip H. Morgan
State of Residency: Louisiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jan 26, 1880
Presentation of Credentials: Apr 21, 1880
Termination of Mission: Presented recall, Jun 6, 1885

Name: Henry R. Jackson
State of Residency: Georgia
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 23, 1885
Presentation of Credentials: Jun 11, 1885
Termination of Mission: Presented recall, Oct 7, 1886

Name: Thomas C. Manning
State of Residency: Louisiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 30, 1886
Presentation of Credentials: Oct 26, 1886
Termination of Mission: Left post, Sep 21, 1887
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Feb 14, 1887.

Name: Edward S. Bragg
State of Residency: Wisconsin
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Jan 16, 1888
Presentation of Credentials: Mar 3, 1888
Termination of Mission: Presented recall, May 27, 1889

Name: Thomas Ryan
State of Residency: Kansas
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 30, 1889
Presentation of Credentials: May 27, 1889
Termination of Mission: Presented recall, May 9, 1893

Name: Isaac P. Gray
State of Residency: Indiana
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 20, 1893
Presentation of Credentials: May 9, 1893
Termination of Mission: Left post, Dec 7, 1894
Note: Returned to post, Feb 14, 1895, but died the same day without resuming charge of the Legation.

Name: Matt W. Ramsom
State of Residency: North Carolina
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Feb 23, 1895
Presentation of Credentials: Apr 18, 1895
Termination of Mission: Left post, Jun 1, 1895
Note: This appointment was characterized as a nullity in an opinion of the Acting Attorney General, Aug 15, 1895.

Name: Matt W. Ramsom
State of Residency: North Carolina
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Aug 24, 1895
Presentation of Credentials: [Sep 18, 1895]
Termination of Mission: Left post, Feb 13, 1897
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 5, 1895. New letter of credence filed with the Foreign Minister on Sep 18, 1895, and not formally presented.

Name: Powell Clayton
State of Residency: Arkansas
Title: Envoy Extraordinary and Minister Plenipotentiary
Appointment: Mar 22, 1897
Presentation of Credentials: May 13, 1897
Termination of Mission: Promoted to Ambassador Extraordinary and Plenipotentiary

Name: Powell Clayton
State of Residency: Arkansas
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 8, 1898
Presentation of Credentials: Jan 3, 1899
Termination of Mission: Presented recall, May 26, 1905

Name: Edwin H. Conger
State of Residency: Iowa
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Mar 8, 1905
Presentation of Credentials: Jun 15, 1905
Termination of Mission: Left post, Aug 3, 1905

Name: David E. Thompson
State of Residency: Nebraska
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jan 24, 1906
Presentation of Credentials: Mar 8, 1906
Termination of Mission: Relinquished charge, Dec 1, 1909

Name: Henry Lane Wilson
State of Residency: Washington
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 21, 1909
Presentation of Credentials: Mar 5, 1910
Termination of Mission: Normal relations interrupted, Feb 18, 1913; new Government of Mexico still unrecognized by the United States when Wilson left Mexico Jul 17, 1913

Note: Nelson O'Shaughnessy was serving as Chargé d'Affaires ad interim when the Embassy in Mexico was closed, at the request of the Mexican authorities, Apr 22, 1914.

Name: Henry P. Fletcher
State of Residency: Pennsylvania
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Feb 25, 1916
Presentation of Credentials: Mar 3, 1917
Termination of Mission: Left post, Jan 25, 1919
Note: George T. Summerlin served as Chargé d'Affaires ad interim, Jan 1919–Mar 1924.

Name: Henry Morgenthau
State of Residency: New York
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Note: Not commissioned; nomination not confirmed by the Senate.

Name: Charles Beecher Warren
State of Residency: Michigan
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Feb 29, 1924
Presentation of Credentials: Mar 31, 1924
Termination of Mission: Left post, Jul 22, 1924

Name: James Rockwell Sheffield
State of Residency: New York
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 9, 1924
Presentation of Credentials: Oct 15, 1924
Termination of Mission: Left post, Jun 5, 1927
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Jan 10, 1925.

Name: Dwight W. Morrow
State of Residency: New Jersey
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 21, 1927
Presentation of Credentials: Oct 29, 1927
Termination of Mission: Left post, Sep 17, 1930
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 17, 1927.

Name: J. Reuben Clark, Jr.
State of Residency: Utah
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Oct 3, 1930
Presentation of Credentials: Nov 28, 1930
Termination of Mission: Left post, Feb 14, 1933
Note: Commissioned during a recess of the Senate; recommissioned after confirmation on Dec 16, 1930.

Name: Josephus Daniels
State of Residency: North Carolina
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Mar 17, 1933
Presentation of Credentials: Apr 24, 1933
Termination of Mission: Left post, Nov 9, 1941

Name: George S. Messersmith
State of Residency: Delaware
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 4, 1941
Presentation of Credentials: Feb 24, 1942
Termination of Mission: Left post, May 15, 1946

Name: Walter Thurston
State of Residency: Arizona
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 4, 1946
Presentation of Credentials: Jun 17, 1946
Termination of Mission: Appointment terminated, Nov 4, 1950

Name: William O'Dwyer
State of Residency: New York
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Sep 20, 1950
Presentation of Credentials: Nov 23, 1950
Termination of Mission: Appointment terminated, Dec 6, 1952

Name: Francis White
State of Residency: Maryland
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Mar 11, 1953
Presentation of Credentials: Apr 28, 1953
Termination of Mission: Left post, Jun 30, 1957

Name: Robert C. Hill
State of Residency: New Hampshire
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 20, 1957
Presentation of Credentials: Jul 25, 1957
Termination of Mission: Left Mexico, Dec 1, 1960

Name: Thomas C. Mann
State of Residency: Texas
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Apr 18, 1961
Presentation of Credentials: May 8, 1961
Termination of Mission: Left post, Dec 22, 1963

Name: Fulton Freeman
State of Residency: California
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Mar 4, 1964
Presentation of Credentials: Apr 6, 1964
Termination of Mission: Left post, Jan 6, 1969

Name: Robert H. McBride
State of Residency: District of Columbia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jun 13, 1969
Presentation of Credentials: Jul 22, 1969
Termination of Mission: Relinquished charge, Jan 25, 1974

Name: Joseph J. Jova
State of Residency: Florida
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Dec 19, 1973
Presentation of Credentials: Jan 30, 1974
Termination of Mission: Left post, Feb 21, 1977

Name: Patrick J. Lucey
State of Residency: Wisconsin
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 26, 1977
Presentation of Credentials: Jul 19, 1977
Termination of Mission: Left post, Oct 31, 1979

Name: Julian Nava
State of Residency: California
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Apr 3, 1980
Presentation of Credentials: May 7, 1980
Termination of Mission: Left post, Apr 3, 1981

Name: John A. Gavin
State of Residency: California
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: May 7, 1981
Presentation of Credentials: Jun 5, 1981
Termination of Mission: Left post, Jun 10, 1986

Name: Charles J. Pilliod, Jr.
State of Residency: Ohio
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Oct 16, 1986
Presentation of Credentials: Nov 4, 1986
Termination of Mission: Left post, Apr 7, 1989

Name: John D. Negroponte
State of Residency: New York
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jun 15, 1989
Presentation of Credentials: Jul 3, 1989
Termination of Mission: Left post, Sep 5, 1993

Name: James Robert Jones
State of Residency: Oklahoma
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Aug 9, 1993
Presentation of Credentials: Sep 10, 1993
Termination of Mission: Left post, Jun 25, 1997

Name: William F. Weld
State of Residency: Massachusetts
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Note: Nomination of Jul 23, 1997, withdrawn Sep 19, 1997.

Note: Charles Ray served as Chargé d'Affaires ad interim Jun 1997–Aug 1998.

Name: Jeffrey Davidow
State of Residency: Virginia
Foreign Service officer
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Jun 29, 1998
Presentation of Credentials: Aug 5, 1998
Termination of Mission: Left post Sep 14, 2002

Name: Antonio O. Garza, Jr.
State of Residency: Texas
Non-career appointee
Title: Ambassador Extraordinary and Plenipotentiary
Appointment: Nov 14, 2002
Presentation of Credentials: Nov 22, 2002
Termination of Mission: