Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,403 pages of information and 233,519 images on early companies, their products and the people who designed and built them.
1846 William Alexander left the company when he became manager to Fox, Henderson and Co, of the London Works, Birmingham.
1847-50 Built seven railway steam locomotives.
1850 ... Petition for adjudication of Bankruptcy was filed against Samuel Adams, William Bridges Adams, and Gerard Ralston, now or lately carrying on business in partnership as Engineers and Railway Carriage Builders, at Fair Field Works, Bow... 
1851 Award at the 1851 Great Exhibition. See details at 1851 Great Exhibition: Reports of the Juries: Class V.
1855 Patent to Robert More Butt, of Fairfield Works, Bow, in the county of Middlesex, "improvements in the manufacture of night lights"
By 1875 The Fairfield Works, Bow were occupied by Messrs Bryant and May