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George Geoffrey Sumner (1873-1950)
1952 Obituary 
"GEORGE GEOFFRY SUMNER, Wh.Ex., was an Associate Member of the Institution for forty-four years, having been elected in 1906. He was educated at Warwick School and at the Manchester Municipal College of Technology, where he gained a Whitworth Exhibition. In 1897, on the termination of a five-year apprenticeship with W. G. Glover and Sons, Ltd., Warwick, general engineers, he worked for four years as foreman in the Manchester works of Sir W. G. Armstrong Whitworth and Company, Ltd. This was followed by the position of works manager to Royce, Ltd., also of Manchester, makers of electrical apparatus.
In 1903 he began to practise on his own account as a consulting engineer, specializing in shop equipment and suction gas engines. He also found time to act as a teacher in technical schools and to prepare pupils for the examinations for admission to Associate Membership of the Institutions of Mechanical and Civil Engineers. After acting as inspector of Naval Ordnance for three years he joined the staff of the Home Office and was engaged as an inspector of factories until his retirement in 1935. He was appointed Inspector of Naval Ordnance in 1940 and retired from this post in 1944. Mr. Sumner's death occurred on 15th November 1950 at the age of seventy-seven."