Secretary of the Admiralty Sir W. Graham Greene to Admiralty Departments
Admiral Sims, of the United States Navy, having been appointed to represent the American Navy Department in London, it has been decided that he should be placed in a confidential position in regard to the Admiralty Departments dealing with war operations, and arrangements are being made to provide him with a room at the Admiralty, (Room 63, Old Building).
In view of the importance of obtaining every possible assistance from the United States in connection with submarine warfare and other important war operations, all information that may be of use to the United States Navy should be communicated by the Departments concerned with operational matters to Admiral Sims, it being understood that the First Sea Lord is to be consulted should there be any doubt as to the expediency of communicating any particular item of secret information.
Questions of supply or enquiries as to materiel will be dealt with in the first instance through the Secretary, as laid down in Office Memorandum of 11th January, 1916, a copy of which is attached. Matters of detail arising out of approved arrangements may be dealt with directly between the Admiralty Department concerned and Admiral Sims.
W Graham Greene
20th April, 1917.
Source Note: DS, UK-KeNA, Adm. 137/1426.