Described as fellow of Jesus, Oxford, in 1714. Foster: Leyson, Morgan, s. Morgan, of Llangan, co. Glamorgan, cler. Jesus Coll., matric. 12 Mar 1705-6, aged 15; BA 1709, MA 1712, BD 1719, rector of Longworth, Berks, 1728. See Foster's Index Eccl.