Thomas Scott Preston, an American clergyman, born in Hartford, Conn., July 23,1824. He graduated at Trinity college, Hartford, in 1843, and at the General theological seihinary, New York, in 1846. He was assistant rector of the church of the Annunciation and subsequently of St. Luke's, in New York, till 1849, when he went to St. Joseph's theological seminary, Fordham, and was ordained in the Roman Catholic church in 1850. After serving as an assistant at the cathedral in New York, and as pastor of St. Mary's church, Yonkers, N. Y., he was in 1853 appointed chancellor of the archdiocese of New York, and in 1873 vicar general in connection with the duties of chancellor. Since 1861 he has also been pastor of St. Ann's church. He has published "Ark of the Covenant, or Life of the Blessed Virgin" (New York, 1860); "Life of St. Mary Magdalene" (1860); "Sermons for the Principal Seasons of the Sacred Year" (1864; enlarged ed., 1866); " The Purgatorian Manual," a selection of prayers and devotions (1866); " Lectures on Christian Unity" (1866); "Reason and Revelation" (1868); "Christ and the Church " (1870); "The Vicar of Christ" (1871); and lectures on the "Devotion of the Sacred Heart" (1874), and other subjects.