Constructor at Naval Dockyard, Chatham, 1902-1905; Naval Dockyard, Portsmouth, 1905-1912; Chief Constructor, Naval Dockyard, Pembroke Dock, 1912-1915; Constructive Manager, Naval Dockyard, Chatham, 1915-1918; built revolutionary battleship HMS Dreadnought; Deputy Director of Dockyards at the Admiralty.