Records of the Director of Minesweeping.
Pack number C152: Experiments in sweeps - Garden Roller, etc, July 1917 to January 1919.
Pack number C153: Senior Naval Officer, Swansea, proposed minesweeping operations, December 1917-May 1918.
Pack number C172: classification of minesweeping trawlers, August 1918.
Pack number C176: statistics, August 1917 to March 1919.
Pack number C215: scheme for sweeping Great Belt, October 1917.
Pack number C233: scheme for control of coastal traffic, December 1917 to April 1918.
Pack number C249: Belgian Coast Ports. Minesweeping arrangements, December 1917 to September 1919.
Pack number C271: Mine barrgaes - probable enemy action against, April 1918.
Pack number C272: Navigation in Home Waters. Coordination of information, April 1918 to March 1919.
Pack number C281: Orkneys and Shetlands, May to September 1918.
Pack number C286: Probable new type of German submarine and mine, June 1918.
Pack number C289: promulgation of U.N. messages, June to August 1918.
Pack number C293: Instructions for Tactical and Strategical Exercises.
Pack number C294: special methods of mining, August 1918.
Pack number C310: minesweeping personnel, January 1919.
Pack number C331: Q and R messages, post war procedure.
Patrol, Minesweeping Training, and Fishery Protection Squadrons, December 1919 to February 1920.
Miscellaneous, March to May 1917.