Robert James Walker, an American statesman, born in Northumberland, Pa., July 19, 1801, died in Washington, D. C, Nov. 11, 1869. He graduated at the university of Pennsylvania in 1819, and was admitted to the bar at Pittsburgh in 1821. In 1826 he removed to Natchez, Miss., and joined the democratic pasty there. He was a United States senator from 1837 to 1845, when he was appointed secretary of the treasury by President Polk, retiring in 1849. He was the principal author of the revenue tariff of 1846. In 1857 -'8 he was governor of Kansas territory, which office he resigned from opposition to the policy of President Buchanan; and on the outbreak of the civil war in 1861 he declared strongly for the Union. In 1863-'4 he was financial agent of the United States in Europe, effecting the sale of $250,000,000 of U. S. bonds. He published "Reports of the Supreme Court of Mississippi, 1818-'32" (1834); "Argument on the Mississippi Slave Question " (1841); and four pamphlets on the finances and resources of the United States (London, 1863-'4).