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(1782-1866) was born at Exeter, N. H. His early life was passed as a lawyer and politician in Ohio, broken by service in the War of 1812, during which he became brigadier-general, and fought at the battle of the Thames. In the years 1813-31 he was Governor of Michigan Territory; during this period his management of Indian relations was highly regarded, and an expedition in 1820 into the heart of the Indian country yielded important results. General Cass published in 1823 "Inquiries Concerning the Indians." His reputation was increased as Secretary of War 1831-36, U. S. Minister to France 1836-42, U. S. Senator from Michigan 1845-48 and 1849-57, and Secretary of State 1857-60. He was an unsuccessful candidate for the Democratic nomination for the Presidency in 1844 and 1852. In 1848 he gained the nomination, but was defeated in a close contest by General Taylor.