Erskine, Ralph brother of Ebenezer, was born at Monilaws, Northumberland. March 18, 1685, and was educated at the University of Edinburgh. In 1711 he became minister at Dunfermline. In 1734 he joined his brother and others in their secession from the Church. SEE SECEDERS. He died November 6, 1752. He was a preacher of great popular abilities, devotional and zealous. His writings are collected under the title Sermons and other practical Works, consisting of above 150 sermons, besides his poetical pieces, to which is prefixed an account of the author's life and writings (Falkirk, 10 volumes, 8vo, 1794-96). — Darling, Cyclop. Bibliographica, 1:1063.