SWAIN, James Barrett, editor, born in New York city, 30 July, 1820. He learned the printing business with Horace Greeley, with whom he was a partner in the publication of the "Log Cabin " in 1840, and in 1838-'9 was private secretary to Henry Clay. In 1843-'9 he was editor of the "Hudson River Chronicle " in Sing-Sing, serving also as clerk of the state-prison there in 1848-'9. He was city editor of the New York "Tribune" in 1850, of the " Times" in 1851-'2, editor of the "American Agriculturist " in 1852, a political contributor to the "Times" in 1853-'9, and its Washington correspondent in 1860-'1. He was also editor of the "Free State Advocate" (a campaign paper published in New York in 1856 by the National Republican committee), of the Albany" Daily Statesman" from 1857 till 1861, and again of the "Hudson River Chronicle" from 1876 till 1885. He was a railroad commissioner for New York state in 1855-'7, 1st lieutenant in the 1st United States cavalry and also colonel of the 1st United States volunteer cavalry in 1861-'4, engineer-in-chief of the National guard of New York in 1865-'6, United States weigher in 1867-'70, and post-office inspector in 1881-'5. Mr. Swain is the author of " Life and Speeches of Henry Clay " (2 vols., New York, 1842 ; 3d ed., 1848) ; "Historical Notes to a Collection of the Speeches of Henry Clay" (2 vols., 1843) ; and "Military History of the State of New York " (3 vols., 1861-'5).