Alexander Tnrney Stewart, an American merchant, born near Belfast, Ireland, Oct. 27, 1802. He studied at Trinity college, Dublin, but did not take a degree, emigrated to New York in 1818, and engaged in teaching. In 1823 he began, at No. 283 Broadway, a business winch has gradually expanded into one of the largest mercantile concerns in the world. He sent a ship load of provisions to Ireland during the famine of 1846, and made similar gifts to the sufferers by the Franco-German war and by the Chicago fire in 1871. In 1867 he was chairman of the honorary commission sent by the United States government to the Paris exposition. In March, 1809, President Grant appointed him secretary of the treasury, but his confirmation was prevented by the law which excludes from that office all who are interested in the importation of merchandise. Mr. Stewart has now (1870) nearly completed the erection on 4th avenue and 32d street, New York, of a building costing more than $1,000,000, which is understood to be intended as a home for working girls; and he is also building at Hempstead Plains, Long Island, on a tract of 10,000 acres, a town known as Garden City.