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Sir Ernest William Moir (1862-1933), Civil Engineer of S. Pearson and Son
1862 June 9th. Born
1877 Apprenticed to Alexander Chaplin and Co., maker of locomotives and cranes, at Cranstonhill Engine Works in Glasgow
1880 Second apprenticeship at R. Napier and Sons, Shipbuilders, Glasgow.
Attended evening classes at the Mechanics’ Institute in Glasgow
1882 Entered University College, London, where he studied engineering for two years under Alexander Kennedy.
c1884 Joined Tancred, Arrol and Co., contractors for the Forth Bridge. William Arrol invited him to join the staff in the drawing office, where he became one of Arrol’s four personal assistants. Moir was employed in building the pair of cantilevers on the south side of the bridge. He was also involved in placing the caissons.
1887 he married Margaret Bruce Pennycook. His wife became directly involved in all her husband’s works, calling herself ‘an engineer by marriage’.
c.1889 Engaged on the construction of the 'Old Hudson River Tunnel' for which S. Pearson and Son were the contractors. The original attempt had been abandoned. The 1889 attempt was also abandoned when the backers, Baring Brothers, failed. Work recommenced in 1902 with Charles M. Jacobs as Chief Engineer.
Ernest Moir invented a medical air lock, used in New York for the first time in 1890, which reduced the annual death rate among employees from 25 to 1 per cent.
Engineering Work: Blackwall Tunnel; Seaham Harbour; Surrey Commercial Docks Extension; G.N. and City Railway and Finsbury Park Terminus of the Brompton and Piccadilly Railway; Admiralty Harbour, Dover; East River Tunnels, New York; Royal Albert Dock Extension (South); Dover Defence Works for Admiralty; served on various Govt. Departmental Committees and Royal Commissions
1911 Ernest William Moir 48, civil engineer, lived in Midhurst with Margaret Bruce Moir 47; they had had 3 children of whom one had died
WWI Comptroller, Inventions Department, Ministry of Munitions; later, in charge of the American Organisation for the M. of M., and, on returning to England, appointed Member of M. of M. Council.
1916 Elected Fellow of University College, London
1921 Patented a diving bell. 
1933 June 14th. Died in Knightsbridge