The Fowler Traction Engine - John Fowler & Co. (Leeds) Ltd Were Engineers Of Leathley Road, Hunslet, Leeds, In West Yorkshire, England Who Were Founded In 1863 By Agricultural Engineer John Fowler. Fowler & Co Produced Traction Engines And Ploughing Implements And Equipment, As Well As Railway Equipment. Fowler & Co Also Produced The Early Track Marshall Tractor Which Was A Tracked Version Of The Field Marshall Tractor. British Railways Engineering Department Locomotives ED1 To ED7 Were Built By Fowler & Co. Photo