Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,473 pages of information and 233,895 images on early companies, their products and the people who designed and built them.
of Ivanhoe Works, Wortley Road, Rotherham.
1856 Company established.
1901 Boiler makers. 
1911 Issued catalogue for boilers for hot water supply. 
1914 Specialities: Wrought Iron, Steel and Copper Boilers; Steam Cooking Appliances; Hot Water Supply Boilers; Delta Boilers, Pure Copper Cylinders and Bath Boilers; Pure Brazed Copper Cylinders and Range Boilers; Copper Independent Boilers for Hot Water Supply; all kinds of Hot-water Heating Apparatus for Greenhouses, Public Buildings etc.; Vertical Boilers for Steam Engines or Cooking Purposes; Hot-water Valves etc.; Coppersmiths' Work. 
1920 Private company.
1937 Petrol storage and galvanized tank manufacturers. "Ferham" Galvanized Tanks. 
1940 Advert for welded vessels. 
1945 Advert for welded vessels. 
1961 Welding engineers, producing fabrications, also domestic boiler manufacturers and galvanizers. 
1968 New heavy fabrication shop of 35,000 sq, ft.