John Davenport Siddeley, 1st Baron Kenilworth (5 August 1866 – 3 November 1953), was a pioneer of the motor industry in the United Kingdom, manufacturing aero engines and airframes as well as motor vehicles. Career The eldest son of William Siddeley and his wife born Elizabeth Davenport, J D Siddeley was born in Longsight, Manchester in 1866 and first worked for his father as an apprentice hosier but took night classes in draughting. In 1892, the young bicycle racer and designer was hired as a draughtsman by the Humber Cycle Company. The then managing director of Dunlop picked him out at Humber and hired Siddeley as Dunlop's Belfast sales manager. In 1900 as managing director of Dunlop's Midlands subsidiary Clipper Tyre Company he gained prominence in the motor industry by driving a 6 hp Daimler car through England's Thousand Miles Trial with marked success. This followed cycling from Land's End to John o' Groats to publicise the new pneumatic tyre. He married Sarah Mabel Goodier, daughter of James Goodier of Macclesfield, in 1893 and they lived in Belfast for a short time but by August 1894, they were living in Meriden, Coventry where eldest son, Cyril, was born. They were to have three sons and two daughters. Motorcars Siddeley founded his Siddeley Autocar Company in 1902 to manufacture cars to Peugeot designs. He had Peugeot-based demonstration cars at the Crystal Palace in 1903. By 1905, the company had a dozen models for sale and some of them were built for him at Vickers' Crayford, Kent factory. During 1905 Wolseley—which then dominated the UK car market—purchased the goodwill and patent rights of his Siddeley Autocar Company business and appointed Siddeley London sales manager of Herbert Austin's The Wolseley Tool and Motor Car Company Limited owned by Vickers, Sons and Maxim. A few months later Herbert Austin left Wolseley to found his own Austin Motor Company and Siddeley was appointed manager of Wolseley in his place and, without authority, added Siddeley to the badge on the Wolseley cars. He resigned from Wolseley in 1909 to go into partnership with H P P Deasy and manage the Deasy Motor Company, also of Coventry. Wartime expansion By 1912, when Deasy resigned because of his ill-health, Siddeley had added his name to the Deasy product's radiator. In November 1912 Deasy's business became—by popular vote of the shareholders—Siddeley-Deasy. During World War I it grew rapidly producing