TREMAIN, Lyman, lawyer and statesman, born in Durham, Greene County, New York, 14 June, 1819; died in New York city, 30 November, 1878. After passing through college, he studied law, and was called to the bar in 1840. He began practice in his native county, and continued it in Albany, was elected supervisor of Durham in 1842, and became district attorney in 1844. In 1846 he was elected surrogate and county judge of Greene county, and in 1858 he became attorney-general of the state of New York. He was sent to the assembly in 1866-'8, and in 1872 was elected congressman as a Republican over Samuel S. Cox, serving from 1 December, 1873, to 3 March, 1875.--His son, Lyman, soldier, born in Durham, Greene County, New York, in June, 1843 ; died near Petersburg, Virginia, 6 February, 1865, entered Hobart in 1860, but abandoned his studies in 1862, and entered the National army. He was appointed adjutant of the 7th New York heavy artillery, served in the defences of Washington, and was afterward made assistant adjutant-general, with the rank of captain, on the staff, in Kilpatrick's division of the Army of the Potomac. In December, 1864, he was commissioned lieutenant-colonel of the 10th New York cavalry. He commanded this regiment at the battle of Hatchet's run, where he received the wound of which he died.