William O'Dwyer

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William O'Dwyer
O'Dwyer in 1943
100th Mayor of New York City[1]
In office January 1, 1946 – August 31, 1950
Preceded by	Fiorello H. La Guardia
Succeeded by	Vincent R. Impellitteri
Kings County District Attorney
In office January 1, 1940 – August 1, 1945
Preceded by	William F.X. Geoghan
Succeeded by	George J. Beldock
United States Ambassador to Mexico
In office November 23, 1950 – December 6, 1952
Appointed by	Harry S. Truman
Preceded by	Walter C. Thurston
Succeeded by	Francis White
Personal details
Born	(1890-07-11)July 11, 1890 Bohola, County Mayo, Ireland
Died	November 24, 1964(1964-11-24) (aged 74) New York City, U.S.
Political party	Democratic
Spouses	Catherine Lenihan ​ ​ (m. 1916; died 1946)​ Elizabeth Sloan Simpson ​ ​ (m. 1949; div. 1953)​
Relations	Paul O'Dwyer (brother) Brian O'Dwyer (nephew) Frank Durkan (nephew)
Alma mater	Fordham University Law School
Profession	Attorney
Military service
Allegiance	United States
Branch/service	United States Army
Years of service	1942–1945
Rank	Brigadier General
Battles/wars	World War II
Awards	Legion of Merit

William O'Dwyer (July 11, 1890 – November 24, 1964) was an Irish-American politician who served as the 100th Mayor of New York City, holding that office from 1946 to 1950. O'Dwyer went on to serve President Harry Truman as Ambassador to Mexico from 1950–1952. O'Dwyer began his political career by serving as the Kings County District Attorney from 1940–45. His brother Paul O'Dwyer served as President of the City Council from 1973–77, and his nephew Brian O'Dwyer was appointed by Governor Kathy Hochul as New York State Gaming Commission Chair in 2022.