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John Cochrane
28th Attorney General of New York
In office January 1, 1864 – December 31, 1865
Governor	Horatio Seymour Reuben Fenton
Preceded by	Daniel S. Dickinson
Succeeded by	John H. Martindale
Member of theU.S. House of Representatives fromNew York's6th district
In office March 4, 1857 – March 3, 1861
Preceded by	John Wheeler
Succeeded by	Frederick A. Conkling
Personal details
Born	(1813-08-27)August 27, 1813 Palatine, New York, U.S.
Died	February 7, 1898(1898-02-07) (aged 84) New York City, New York, U.S.
Party	Democratic
Other political affiliations	Radical Democratic (1864)
Alma mater	Hamilton College
Signature
Military service
Allegiance	United States
Branch/service	Union Army
Years of service	1861–1863
Rank	Brigadier General
Commands	65th New York Volunteer Infantry
Battles/wars	American Civil War Peninsula campaign Battle of Fredericksburg

John Cochrane (August 27, 1813 – February 7, 1898) was an American lawyer, soldier, and politician fromNew York. He was aU.S. representative, theNew York attorney general, and aUnion Army general.

John Cochrane was born inPalatine, New York on August 27, 1813, the grandson ofJohn Cochran, Surgeon General of theContinental Army.^[1] He studied first atUnion College, but then graduated fromHamilton College in 1831. While attendingUnion College, he became a member of theSigma Phi Society. Afterwards he studied law, was admitted to the bar in 1834, practiced inOswego andSchenectady, and then moved to New York City.

In 1852, he campaigned forFranklin Pierce who appointed him Surveyor of thePort of New York in 1853.

In 1856, he was electedU.S. Representative from New York's6th District as aDemocrat, and re-elected in 1858, serving in the35th Congress and36th Congress, from 1857 to 1861. In Congress he took a prominent part in debates on land reform, revenue, and other public questions. He was defeated for re-election in 1860.

At the outbreak of theAmerican Civil War he became a colonel of the65th New York Volunteer Infantry (also known as the 1st United States Chasseurs), which he commanded in thePeninsular Campaign. In July 1862, he was promoted tobrigadier general of volunteers, but resigned his commission in February 1863, ostensibly on account of failing health but more likely as a result of his political maneuverings after Fredericksburg. Before that date, he had commanded a brigade under Brigadier GeneralJohn Newton of theVI Corps. This brigade was present at theBattle of Fredericksburg. Cochrane had also agitated for the removal ofAmbrose Burnside as commander of theArmy of the Potomac.Alexander Shaler replaced Cochrane as commander of the brigade.

Cochrane wasNew York State Attorney General from 1864 to 1865, elected on the ticket which was nominated by theUnion State Convention includingRepublicans andWar Democrats.

In 1864, he was nominated by theRadical Democratic Party for the vice-presidency on the ticket withJohn C. Frémont, but Frémont soon withdrew. He was a delegate to the1868 Republican National Convention.

As leader of the New York delegation to theLiberal Republican Convention atCincinnati in 1872, he was instrumental in securing the nomination ofHorace Greeley for the presidency.

Afterwards he became a Democrat again, and was elected a Sachem ofTammany Hall. In 1872 and 1873, he was President of theCommon Council of New York City. As such he was Acting Mayor of New York when MayorA. Oakey Hall temporarily retired during theTweed investigation.

Cochrane, who was a member of theSociety of the Cincinnati, died at his home at 7 East Sixty-Second Street inManhattan, and was buried atAlbany Rural Cemetery inMenands, New York.

• List of American Civil War generals (Union)

• This article incorporates text from a publication now in thepublic domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905).New International Encyclopedia (1st ed.). New York: Dodd, Mead.{{cite encyclopedia}}:Missing or empty|title= (help)
• United States Congress."John Cochrane (id: C000570)".Biographical Directory of the United States Congress. Retrieved on August 17, 2008
• Staff (September 16, 1863)Nomination for New York State Attorney General,The New York Times
• Staff (February 9, 1898)Obituary,The New York Times
• Political Graveyard entry
• List of New York Attorneys General Office of the New York State Attorney General

• Media related toJohn Cochrane (politician) at Wikimedia Commons

• 1813 births
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• Union army generals
• People of New York (state) in the American Civil War
• New York State attorneys general
• Burials at Albany Rural Cemetery
• New York (state) Republicans
• Radical Republicans
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• Democratic Party United States representatives from New York (state)
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