found: Fast anchor, April 1953:masthead, page 1 (William Gray & Co. Ltd., West Hartlepool; shipbuilders, ship repairers and marine engineers)
found: Wikipedia, viewed 3 Jan. 2018(William Gray & Company Ltd.; British shipbuilding company located in West Hartlepool, County Durham, in North East England; founded in 1863 by John Punshon Denton (who had established a shipyard in Middleton, Hartlepool in 1839) and William Gray (a businessman with a chain of stores in Hartlepool) as a partnership, Denton, Gray and Company; the business moved to West Hartlepool in 1869; after Denton's death in 1871, Gray took over the business in 1874; renamed William Gray and Co, it became a private and then a public limited company under the leadership of three generations of the Gray family until finally wound up in 1962)
found: Grace's Guide to British Industrial History website, viewed 3 Jan. 2018(William Gray & Company of Central Marine Engineering Works, West Hartlepool, was a shipbuilding firm 1874-1963, established by William Gray (1823-1898); registered on 21 December 1888, it became a private limited company on 1 January 1889, then a public company in 1918; in 1961, the bulker Blanchland was the last ship to be completed by Gray; in 1962, the Gray's went into voluntary liquidation and its yards were sold or demolished in 1963; the Central Marine Engine Works of West Hartlepool and Hartlepool established by William Gray and Co in 1883 to manufacture their own engines on site)