WELLS, Henry Horatio, lawyer, born in Rochester, New York, 17 September, 1823. He was educated at Romeo academy, Michigan, studied law in Detroit with Theodore Romeyn, was admitted to the bar in 1846, and in 1854-'6 was a member of the legislature. He entered the army in September, 1862, as colonel of the 26th Michigan infantry, and served until September, 1866. In February, 1863, he was made provost-marshal-general of the defences south of Potomac river, which office he held until the close of the war. In May, 1865, he received the brevet of brigadier-general of volunteers, and, settling in Virginia in 1868-'9, was military governor of that state. He was the Republican candidate for governor in the latter year, but was defeated by Gilbert C. Walker. On the assassination of President Lincoln, he took charge of the investigation in Washington that resulted in the capture of the conspirators, and afterward he was associate counsel in the criminal proceedings against Jefferson Davis for treason. In 1870-'1 he was counsel, with Henry A. Wise, in the Chohoon and Ellyson mayoralty ease, during the trial of which he was almost fatally injured by the falling of a gallery, crowded with people, in the capitol at Richmond. In 1871-'2 he was United States attorney for the eastern district of Virginia, and he then removed to Washington, where, in 1875-'80, he was United States attorney for the District of Columbia.