Henry Lewis Guy
Guy was born at Penarth, in the Vale of Glamorgan, Wales in 1887. Following his education he joined the Taff Vale Railway as a student apprentice, and studied at the University College of South Wales where he gained a diploma in mechanical and electrical engineering.
In 1915, Guy joined the British Westinghouse Company, (later to become Metropolitan-Vickers) as a design engineer. In 1918 he was appointed chief mechanical engineer at that company, a post he was to hold until 1941. Whilst at Metrovicks, Guy was responsible for many innovations in the design of steam turbo-generators.
From 1941 until his retirement in 1951, Guy was secretary of the Institution of Mechanical Engineers.