Denis O'Leary (January 22, 1863 – September 27, 1943) was an American educator, lawyer, and politician who served as
Queens County district attorney
The District Attorney of Queens County is the elected district attorney for Queens County in New York State, coterminous with the New York City borough of Queens. The office is responsible for the prosecution of violations of New York state laws. ...
and for one year as a member of the
United States House of Representatives
The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the Lower house, lower chamber of the United States Congress, with the United States Senate, Senate being ...
from
New York
New York most commonly refers to:
* New York City, the most populous city in the United States, located in the state of New York
* New York (state), a state in the northeastern United States
New York may also refer to:
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, from 1913 to 1914.
Biography
O'Leary was born on January 22, 1863, in
Manhasset, Long Island, New York
Manhasset is a Hamlet (New York), hamlet and census-designated place (CDP) in Nassau County, New York, Nassau County, on the North Shore (Long Island), North Shore of Long Island, in New York (state), New York. It is considered the anchor communi ...
. He attended and later taught in the public schools. He was graduated from the law school of
New York University
New York University (NYU) is a private research university in New York City. Chartered in 1831 by the New York State Legislature, NYU was founded by a group of New Yorkers led by then-Secretary of the Treasury Albert Gallatin.
In 1832, the ...
in 1890. O`Leary was admitted to the bar the same year and commenced practice in
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
.
Political career
He was assistant corporation counsel of New York City in 1905 and 1906 and commissioner of
public works
Public works are a broad category of infrastructure projects, financed and constructed by the government, for recreational, employment, and health and safety uses in the greater community. They include public buildings ( municipal buildings, sc ...
of Queens Borough in 1911 and 1912.
Congress
O`Leary was elected as a
Democrat
Democrat, Democrats, or Democratic may refer to:
Politics
*A proponent of democracy, or democratic government; a form of government involving rule by the people.
*A member of a Democratic Party:
**Democratic Party (United States) (D)
**Democratic ...
to the Sixty-third Congress and served from March 4, 1913, until December 31, 1914, when he resigned.
District attorney
He later served as
district attorney
In the United States, a district attorney (DA), county attorney, state's attorney, prosecuting attorney, commonwealth's attorney, or state attorney is the chief prosecutor and/or chief law enforcement officer representing a U.S. state in a l ...
of Queens County 1915-1921.
Later career and death
He resumed the practice of law until 1929 when he retired. He died in
Douglaston, Queens County, N.Y., September 27, 1943.
References
*New York Times
Denis O'Leary, 80, Ex-Representative; Gave Up Congress Seat to Win Queens District Attorneyship September 28, 1943
1863 births
1943 deaths
New York University School of Law alumni
Democratic Party members of the United States House of Representatives from New York (state)
People from Manhasset, New York
Queens County (New York) District Attorneys
New York (state) Republicans
Members of the United States House of Representatives from New York (state)
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