Coordinates: 53°47′11″N 1°32′16″W / 53.7864905°N 1.5378145°W
John Fowler & Co Engineers of Leathley Road, Hunslet, Leeds, West Yorkshire, England produced traction engines and ploughing implements and equipment, as well as railway equipment. Fowler also produced the Track Marshall tractor which was a tracked version of the Field Marshall. British Railways Engineering Department locomotives ED1 to ED7 were built by Fowler
John Fowler was an agricultural engineer and inventor who was born in Wiltshire in 1826. He worked on the mechanisation of agriculture and was based in Leeds. He is credited with the invention of steam-driven ploughing engines. He died 4 December 1864, following a hunting accident. After his death, John Fowler & Co., was then continued by Robert Fowler and Robert Eddison. In 1886 the limited company of John Fowler & Co., (Leeds) Ltd., was formed. It merged with Marshall, Sons & Co., Ltd., of Gainsborough in 1947 to form Marshall-Fowler Ltd.