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Ronald Glinn Jerfferson (c1888-1938)
1938 Obituary 
Commr. (E.) RONALD GLINN JEFFERSON, D.S.M., R.N., spent the whole of his career in the Royal Navy. He was born at Turnchapel in the parish of Plympton St. Mary, Devonshire, and was educated at Ryder's School, Devonport. From 1904 to 1909 he served his apprenticeship in mechanical training establishments of the Royal Navy, and was then made engine room artificer, becoming chief engine room artificer in 1906.
During the War he acted as mate and was promoted to be engineer lieutenant in 1919, and served as senior engineer on HMS Calliope, and later on the Dauntless. Subsequently he was made engineer officer on H.M.S. Wishart, of 30,000 h.p. He received his appointment as engineer lieutenant-commander in 1927; his duties included those of senior lecturing officer at the mechanical training establishment, Devonport, and those of engineer officer on HMS Valhalla. In 1931 he was appointed assistant to the Admiralty engineer overseer, Manchester, to whom he was responsible for the inspection of all Admiralty contract work in the Lancashire area. He carried out inspections and reported on various engineering firms in the district, in connection with the desirability of placing them on the Admiralty contract list.
A year later he left for China as engineer commander of the Sixth Destroyer Flotilla leader, HMS Keppel, returning in 1935. He then took a course of study in electrical engineering at Portsmouth, and later joined the Reserve Fleet, serving on HMS Eagle at Devonport Dockyard. In 1937 he joined HMS Colombo, and later served on. HMS Ceres, when these vessels were in reserve at Devonport.
Commander Jefferson, who was elected an Associate Member of the Institution in 1932, died on 4th November 1938, in his fiftieth year.