Mirrlees, Tait and Watson
Engineers of Glasgow.
Boiler makers and Millwrights.
1868 William Renny Watson became a partner in the firm of Mirrlees and Tait, the style being then changed to Mirrlees, Tait, and Watson.
1870 William Tait died but the title of the firm remained unchanged until 1882.
1883 The Weston inventions increased development in the firm to such an extent that in 1883 the partners, with Mr John Laidlaw as Managing Director, built a new works and formed a new, separate company Watson, Laidlaw and Co to manufacture centrifugal separators. This continued in operation until at least 1961.
1885 Mr. A. Robertson and J. C. Hudson, who had been for some time in the management of the business, were admitted as partners and the title of the firm changed to Mirrlees Watson Co.