The introduction of the convoy system for the Atlantic trade dates from the early days of May, 1917, when the prospect—­for it was only then a prospect—­of increasing assistance from the U.S.  Navy in regard to destroyers and other small craft for escort duty as well as convoy cruisers for ocean work, made the system possible.  Action taken with the U.S. authorities for the introduction of a system by which the trade from that country in neutral shipping was controlled enabled the ships of the 10th Cruiser Squadron to be gradually withdrawn from blockade duties and utilized as ocean convoy cruisers.  Even with assistance from the U.S.  Navy in the shape of old battleships and cruisers, the use of the 10th Cruiser Squadron, the withdrawal of the 2nd Cruiser Squadron of five ships from the Grand Fleet, the use of the ships of the North American and West Indies Squadron and of some of our older battleships from the Mediterranean, there was still a shortage of convoy cruisers; this deficiency was made up by arming a number of the faster cargo vessels with 6-inch guns for duty as convoy cruisers.  These vessels usually carried cargo themselves, so that no great loss of tonnage was involved.

On May 17 a committee was assembled at the Admiralty to draw up a complete organization for a general convoy system. (The committee was composed of the following officers:  Captain H.W.  Longden, R.N., Fleet Paymaster H.W.E.  Manisty, R.N., Commander J.S.  Wilde, R.N., Lieutenant G.E.  Burton, R.N., and Mr. N.A.  Leslie, of the Ministry of Shipping.) This committee had before it the experience of an experimental convoy which arrived from Gibraltar shortly after the commencement of the committee’s work, as well as the experience already gained in the Scandinavian and French coal trade convoys, and the evidence of officers such as Captain R.G.  Henderson, R.N., who had made a close study of the convoy question.

On June 6 the report was completed.  This valuable report dealt with the whole organization needed for the institution of a complete system of convoy for homeward and outward trade in the Atlantic.  In anticipation of the report steps had already been taken to commence the system, the first homeward bound Atlantic convoy starting on May 24.  A necessary preliminary for the successful working of the convoys was a central organization at the Admiralty.  This organization—­termed the Convoy Section of the Trade Division of the Naval Staff—­worked directly under Rear-Admiral A.L.  Duff, who had recently been placed on the Board of Admiralty with the title of Assistant Chief of the Naval Staff (A.C.N.S.), and who was in immediate control of the Anti-Submarine, Trade and Minesweeping Divisions of the Staff.  Fleet Paymaster H.W.E.  Manisty was appointed as Organizing Manager of Convoys, and the Convoy Section, comprising at first some ten officers, soon increased to a total of fifteen, and was in immediate touch with the Ministry of Shipping through a representative, Mr. Leslie.  His function was to make such arrangements as would ensure co-operation between the loading and discharging of cargoes and convoy requirements, and generally to coordinate shipping needs with convoy needs.