William O'Dwyer

William O'Dwyer
O'Dwyer in 1943
100th Mayor of New York City[1]
In office
January 1, 1946 – August 31, 1950
Preceded byFiorello H. La Guardia
Succeeded byVincent R. Impellitteri
Kings County District Attorney
In office
January 1, 1940 – August 1, 1945
Preceded byWilliam F.X. Geoghan
Succeeded byGeorge J. Beldock
United States Ambassador to Mexico
In office
November 23, 1950 – December 6, 1952
Appointed byHarry S. Truman
Preceded byWalter C. Thurston
Succeeded byFrancis White
Personal details
Born(1890-07-11)July 11, 1890
Bohola, County Mayo, Ireland
DiedNovember 24, 1964(1964-11-24) (aged 74)
New York City, U.S.
Political partyDemocratic
Spouses
  • Catherine Lenihan
    (m. 1916; died 1946)
  • Elizabeth Sloan Simpson
    (m. 1949; div. 1953)
RelationsPaul O'Dwyer (brother)
Brian O'Dwyer (nephew)
Frank Durkan (nephew)
Alma materFordham University Law School
ProfessionAttorney
Military service
Allegiance United States
Branch/service United States Army
Years of service1942–1945
Rank Brigadier General
Battles/warsWorld War II
AwardsLegion 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.

  1. ^ "The Green Book: Mayors of the City of New York" Archived May 14, 2012, at the Wayback Machine on the official NYC website