List of ambassadors of the United States to Japan
List of chiefs of mission

Name
Presented credentials
End of term
End of date
Luke E. Wright
May 26, 1906
Left Japan
August 13, 1907
Thomas J. O'Brien
October 15, 1907
Left Post
August 31, 1911
Charles Page Bryan
November 22, 1911
Left Post
October 1, 1912
Larz Anderson
February 1, 1913
Left Japan
March 15, 1913
George W. Guthrie
August 7, 1913
Died at post
March 8, 1917
Roland Morris
October 30, 1917
Left Japan
May 15, 1920
Charles B. Warren
September 24, 1921
Left Japan
January 28, 1923
Cyrus Woods
July 21, 1923
Left Japan
June 5, 1924
Edgar Bancroft
November 19, 1924
Died at post
July 27, 1925
Charles MacVeagh
December 9, 1925
Left Japan
December 6, 1928
William Castle, Jr.
January 24, 1930
Left Japan
May 27, 1930
W. Cameron Forbes
September 15, 1930
Left Japan
March 22, 1932
Joseph Grew
June 14, 1932
American declaration of war
December 8, 1941
William J. Sebald
1945
-
1952
Robert D. Murphy
May 9, 1952
Relinquished Charge
April 28, 1953
John M. Allison
May 28, 1953
Left Post
February 2, 1957
Douglas MacArthur II
February 25, 1957
Left Post
March 12, 1961
Edwin Reischauer
April 27, 1961
Left Post
August 19, 1966
U. Alexis Johnson
November 8, 1966
Left Post
January 15, 1969
Armin H. Meyer
July 3, 1969
Left Post
March 27, 1972
Robert Stephen Ingersoll
April 12, 1972
Left Post
November 8, 1973
James D. Hodgson
July 19, 1974
Left Post
February 2, 1977
Mike Mansfield
June 10, 1977
Left Post
December 22, 1988
Michael Armacost
May 15, 1989
Left Post
July 19, 1993
Walter Mondale
September 21, 1993
Left Post
December 15, 1996
Thomas S. Foley
November 19, 1997
Left Post
April 1, 2001
Howard Henry Baker, Jr.
July 5, 2001
Farewell address
February 17, 2005
Tom Schieffer
April 11, 2005
Left Post
January 20, 2009
John Roos
August 20, 2009
Left Post
August 12, 2013
Caroline Kennedy
November 12, 2013
Left Post
January 18, 2017
William F. Hagerty
July 27, 2017
present
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Question: What happened to Kennedy and John Roos in 2013?
Answer: In 2013, Kennedy succeed John Roos as United States Ambassador to Japan.