MARVIN, Dudley, lawyer, born in Lyme, Connecticut, 6 May, 1786 ; died in Ripley, Chautauqua County, New York, 25 June, 1856. He received an academical education, studied law, and was admitted to the bar in 1811, after removing to Canandaigua, New York, where he soon won reputation in his profession. He was elected to congress as a Whig, and served from 1 December, 1823, till 3 March, 1829. When he entered congress one of the more important pending questions was the modification and revision of the tariff. As second on the committee to which was referred the investigation into the amount of duties paid on imported woollen goods, he drew up, in the absence of the chairman, an elaborate report, which was subsequently made the basis of the measure known as the Woollen bill. In 1835 he removed to New York city, and at once engaged in successful practice; but in 1845 the care of landed interests in Chautauqua county, New York, compelled him to reside there. He was again elected to congress in 1846, and served till 3 March, 1849. In his speech in 1847 on that part of the president's message that referred to the Mexican war, his remarks on the question of slavery in the territories were almost prophetic in their character. As a lawyer Mr. Marvin's distinguishing characteristics were unusual gifts as an orator and an extreme subtlety of observation that rendered his power of cross-examination exceptional.