Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,109 pages of information and 233,634 images on early companies, their products and the people who designed and built them.
of Cyclops Steel Works, Sheffield, makes of many metal products including iron wheels and rails for Britain's railways.
1839 Mention as Johnson, Cammell and Co 
1845 Established the Cyclops Works, in the vicinity of the railway station, outside the town.
1852 Thomas Manby Johnson dies
1853 Edward Bury became a partner
1855 Became Charles Cammell and Co when Edward Bury retired