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John Whittle Holden (c1889-1948)
1949 Obituary 
"JOHN WHITTLE HOLDEN, whose death in his fifty-ninth year occurred at Bath on 1st October 1948, was elected an Associate Member of the Institution in 1925. He was educated at the Grammar School and College of Technology in Manchester.
After serving an apprenticeship in the same city with Messrs. Smith and Coventry, Ltd., from 1905 to 1907, and with Messrs. Nasmyth Wilson and Company, Ltd., from 1907 to 1911, he spent the next two years in the erecting and repair shops of the Great Central Railway at Gorton. Subsequently he held an appointment for a brief period as assistant draughtsman to Messrs. Mather and Platt, Ltd., Manchester, for whom he was also engaged later as foreman in charge of erection abroad. In 1916 he became attached to the finance and contracts department of the Ministry of Munitions and served for four years as a chief technical assistant. He then entered the service of the Admiralty as a deputy principal in the technical cost branch, where he remained until 1934. From 1935 he was engineer controller and sales manager for the Quasi-Arc Company, Ltd., London, and he took up an appointment with the Admiralty during the 1939-45 war."