Biography

Provided by Biographical Dictionary of the United States Congress:
McKEON, John, a Representative from New York; born in Albany, N.Y., March 29, 1808; attended private schools and was graduated from the law department of Columbia College (later Columbia University), New York City, in 1828; was admitted to the bar the same year and practiced in New York City; a member of the State assembly 1832-1834; elected as a Jacksonian to the Twenty-fourth Congress (March 4, 1835-March 3, 1837); unsuccessful candidate for reelection in 1836 to the Twenty-fifth Congress; elected as a Democrat to the Twenty-seventh Congress (March 4, 1841-March 3, 1843); unsuccessful candidate for reelection in 1842 to the Twenty-eighth Congress; district attorney for New York County 1846-1850; appointed by President Pierce as United States district attorney for the southern district of New York and served from July 10, 1854, to January 7, 1858; again district attorney for New York County from November 1881 until his death in New York City November 22, 1883; interment in family vault under St. Patrick’s Cathedral on Mott Street.