Unpublished typescript memoir 'Naval Career of Vice-Admiral Sir Allan Trewby', including descriptions of training as a cadet and at the Royal Naval Engineering College, Keyham, 1931-1939; service during World War Two, including mine sweeping in Scotland, training at the Royal Naval College in Greenwich, transporting Prime Minister Winston Churchill to Norfolk, Virginia, USA, for meetings, and service on a cruiser patrolling the Mediterranean; work in the Gas Turbine section, Admiralty, and as Assistant Director of Marine Engineering, Amiralty 1951-1962; service as Captain of HMS SULTAN, 1963-1964; work as Assistant Controller, Polaris, 1968-1971, and work as Chief of Fleet Support, 1971-1974. Papers relating to his work with naval gas turbines, dated 1954-1955, 1962-1963, notably including Transactions of the American Society of Mechanical Engineers, vol 77 no 4, May 1955, Transactions of the American Society of Mechanical Engineers Series A: Journal of Engineering for Power, vol 85 no1, Jan 1963, and Transactions of the Institute of Marine Engineers, vol 66 no 6, Jun 1954, all including articles by Trewby on British naval gas turbines; 'Marine gas turbines in the Royal Navy', printed text of lecture given by Trewby at the Institute of Marine Engineers International Conference, May 1962.

Papers of J R Edmonds, 1895-1917, comprising typescripts of papers read before Woolwich Polytechnic Engineering Society, on 'Pumps', 1896; 'The Slide Rule', 1898; 'Steam Turbines', 1903; notes on 'Motor Cars', 1896, 'Florence Nightingale', 1913; 'Women's Co-Operative Guild', [c 1905]; printed lectures on Experiments on a Simple Non-Condensing Steam Engine, 1900; De Laval Steam Turbines, 1902; Design of Marine Steam Turbines, 1908; Channel Tunnel, 1913, 1917.

Proceedings of Institution of Mechanical Engineers vol 157, containing three articles on developments in internal combustion engines and gas turbines including 'The Development of Gas Turbine Power Plants for Traction Purposes in Germany' by Bright, 1947.