Civil engineer, born in East Linton, East Lothian; employed by the firm of Messrs. Boulton & Watt at Soho, Birmingham, and entrusted by them to direct in the construction of the Albion Mills, London, he became at once famous for his engineering ability, and was in general request for other works, such as the construction of docks, canals, and bridges, distinguishing himself most in connection with the latter, of which Waterloo, Southwark, and London over the Thames, are perhaps the finest (1761-1821).