Crawshay Brothers
1817 William Crawshay, living in London, gained full control of Cyfarthfa Ironworks - his son William Crawshay II running the works was constantly at odds with playboy brother Richard Crawshay, although operating as "Crawshay Brothers".
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1879 On the death of Robert Thompson Crawshay, his son William Thompson Crawshay succeeded to the management of the extensive coalfields, and inherited his father's estate at Caversham in Berkshire and estate valued at under £1,200,000, and joint control of the business with his two brothers.
1879 Operating under the title Crawshay Brothers they reopened the works in October 1879 and proceeded to effect a changeover to steel production at Cyfarthfa. This move, however, did not prove to be an unqualified success and was insufficient to secure long-term survival of the works.
1902 Acquired by Guest, Keen, and Nettlefolds (GKN).
1919 The works finally closed