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Iron Bridge Builders and Ship Builders, of London
1856-7 Robert Baillie and Joseph Westwood set up in business as shipbuilders, boilermakers and ironworkers, in partnership with James Campbell, in a new yard, London Yard, at Cubitt Town.  This was Westwood, Baillie, Campbell and Co
1857 February. 'Messrs. Westwood, Baillie, Campbell, and Co., of Poplar, launched from their yard yesterday a steam vessel called the Harbinger, being the first of a fleet of tug boats required by the Thames Steam Tug and Lighterage Company. The Harbinger is intended to run between Victoria Docks and Richmond. There are two other tag boats nearly ready for launching.'
1857 June 'The fleet of 40 iron barges ordered by the Board of Trade for the service of the Turkish Government, which are under construction by Messrs. Westwood, Baillie, and Campbell, at Millwall, Isle of Dogs, are rapidly progressing towards completion. 
1858 January. 'Some eighteen months since the eight acres on which the works of Messrs. Westwood, Baillie, Campbell and Co., have been erected, were simply brickfields. During the period mentioned the firm have erected an extensive range of workshops, in which are to be found, all the conveniences of drilling machines, punching presses, lathes, and, in fact, everything necessary for carrying on a large trade in shipbuilding, wrought-iron bridges, and other works. The firm have turned out, during eighteen months, 2000 tons of iron bridges for the East Indies. They have completed other bridges and pontoons to the extent of 1000 tons, and constructed the landing pier at Milford Haven for the Leviathan, a work which has met with the entire approval of Mr. Brunel; they have built three Vessels, a caisoon for the East and West India Dock Company, and 40 mud vessels for the Turkish government. These were turned out within two months, with other works, including a number of steam boilers, and we may further mention that the firm are now in the course of completing 4560 feet of iron bridges for the East Indian railways.....[more about bridge tests]'
1862 November. Partnership changed. '...the Partnership lately subsisting between us the undersigned, Joseph Westwood, Robert Baillie and James Campbell, as Shipbuilders, Engineers, and Wrought Iron Workers, at London Yard, Isle of Dogs, in the county of Middlesex, under the firm of Westwood, Baillie, Campbell, and Company; is this day dissolved by mutual consent so far as regards the said James Campbell...'
The business then became Westwood, Baillie and Co