Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,459 pages of information and 233,880 images on early companies, their products and the people who designed and built them.
1848 Thomas Green bought a site and founded the Smithfield Ironworks in Leeds
1862 Incorporated as a Limited Company.
1879 Private company. The company was registered on 14 June, to take over the business of the firm of the same name, as engineers, ironfounders and machinists. 
1880s Started building locomotives.
Became Thomas Green and Son