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(1806-1873), born in Rochester, N.H., was admitted to the bar in 1830. He was a member of the New Hampshire House of Representatives in 1832, and was appointed U.S. Attorney for the district of New Hampshire from 1834 to 1840. He represented New Hampshire in the U.S. Congress from 1843 to 1845. He was a U.S. Senator from 1847 to 1853, being the first zealous opponent of slavery in that body, and was nominated in 1852 as the Presidential candidate of the Free-Soil party. He was again a U.S. Senator from 1855 to 1865, and was appointed Minister to Spain by President Lincoln, serving from 1865 to 1869.