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Percy Thompson Dean (c1877-1939)
1939 Obituary 
"Lt.-Commr. PERCY THOMPSON DEAN, V.C., R.N.V.R., was chairman and managing director of the Moel Ferna and Deeside slate quarry at Llangollen, North Wales. He was also chairman of the Lancashire Canal Transport Company, Ltd., of Blackburn, and a director of the Buttermere Green Slate Company, Ltd., of Keswick. He also acted as technical adviser to these companies.
He was a native of Blackburn and was educated at Bromsgrove School and at Manchester Technical School. In 1893 he entered Messrs. Brunner, Mond's works at Lostock Graham, Cheshire, and served in the fitting shops and drawing office until 1898. After serving for a further period with the maintenance staff he joined the firm of John Dean, Ltd., of which he subsequently became chairman and managing director. Owing to an accident he was not accepted for active service until 1916, but during the early stages of the War he was secretary to the East Lancashire Munitions Committee. He then received an appointment to the Dover Patrol, and early in 1918 was promoted to be engineer officer-in-charge of H.M. motor launches in Dover. He was awarded the V.C. for his bravery at Zeebrugge in 1918 when in command of H.M. motor launch No. 282. After the War he resumed the control of the companies with which he was associated and was elected a Member of the Institution in 1929. His death occurred on 20th March 1939, in his sixty-second year."