The file comprises printed pamphlets, circulars and handwritten notices outlining regulations to be observed nationally by militia groups in Britain, and more particularly, by the Denbigh and Lleweni Volunteers, 1801-1807, accounts, 1813, and records of the Denbighshire Regiment of Yeomanry Cavalry, 1871-1876, including pay lists, a summarised attendance register and muster roll.

Minutes of the Military Education committee, 1935-1937, and of its predecessor, the Nomination Board, 1929-1934, Registrar's papers and correspondence relating to committee meetings, 1935-1939, Registrar's correspondence with the War Office, 1907-1945, and Registrar's general correspondence, 1929-1934.