Thomas J. O'Brien (Michigan politician)

Thomas J. O'Brien
The Honorable Thomas J. O'Brien, U.S. Ambassador to Japan, in 1910.
United States Ambassador to Italy
In office
November 13, 1911 – September 17, 1913
PresidentWilliam Howard Taft
Preceded byJohn G. A. Leishman
Succeeded byThomas Nelson Page
United States Ambassador to Japan
In office
October 15, 1907 – August 31, 1911
PresidentTheodore Roosevelt
William Howard Taft
Preceded byLuke E. Wright
Succeeded byCharles Page Bryan
United States Minister to Denmark
In office
May 27, 1905 – June 5, 1907
PresidentTheodore Roosevelt
Preceded byLaurits S. Swenson
Succeeded byMaurice Francis Egan
Personal details
Born
Thomas J. O'Brien

(1842-07-30)30 July 1842
Jackson, Michigan
Died19 May 1933(1933-05-19) (aged 90)
Political partyRepublican
SpouseDelia Howard O'Brien (1848–1926)
Children2
Alma materUniversity of Michigan
ProfessionPolitician, diplomat
Signature

Thomas James O’Brien (July 30, 1842 – May 19, 1933) was a politician and diplomat from the U.S. state of Michigan.

O'Brien was born in Jackson, Michigan, on July 30, 1842, the son of Timothy O'Brien and Elizabeth Lander O'Brien. On September 4, 1873, he married Delia Howard (July 14, 1848 - January 22, 1926).

O'Brien was a lawyer by profession and a Republican politician. In 1883 he was an unsuccessful candidate for the office of Justice of the Michigan Supreme Court. In 1896 and 1904 he was a delegate to the Republican National Convention from Michigan.