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of Midland Iron Works, Donnington, near Wellington, Shropshire.
See also C. and W. Walker: The History
1837 Company founded in Goswell Street, Clerkenwell, London, under the direction of Charles Walker. The firm undertook smiths' work
1857 the Works were transferred from London to Donnington, near Wellington, Shropshire, when the founder handed over the control of the undertaking to his sons, Charles and William, and the firm then became known as C. and W. Walker. Presumably at this time the works in Tipton were closed.
When first established at Donnington, Charles Clement Walker supervised the Works, while William Thomas Walker devoted most of his attention to the firm’s interests in London, where an office at Finsbury Circus was opened.
1869 Manufacturing gas purifiers at various gas works around the country
1899 Public company. The company was registered on 3 May, to take over the business of gas engineers of the firm of the same name. 
1914 Gas, chemical and constructional engineers. Specialities: Milbourne patent automatic rapid purifier cover fasteners, purifiers, internal purifier valves, duplex valve, trinity valve, automatic safety discharged shoot, India rubber jointing, reversing valves etc. Employees 1,000. 
1937 Gas, chemical and structural engineers. 
1955 See The Progress of C. and W. Walker
1961 Gas, chemical and constructional engineers, manufacturing gas holders, tower purifiers, welded steel tanks, pressure vessels, condensers, heat exchangers, steel chimneys, "Milbourne" gas valves and structural steelwork.