The papers include training guidelines for Troubridge as a gunnery officer, 1922-1924; naval orders, 1925-1926; Admiralty papers, 1945-1946, two commissions, 1915 and 1943; and lecture notes, syllabuses and essays while he was at the Royal Naval College, Greenwich, 1924-1925. The family papers had been arranged by a hired researcher prior to being loaned to the Museum in 1984.

Administrative / biographical background
Entered the navy as a cadet in 1908, passing at Royal Naval College at Osborne and Dartmouth, became midshipman in 1912. He took part in the action off Dogger Bank and at Jutland and became lieutenant in 1916. The following year he was appointed to motor boats in which he remained until the armistice. Troubridge took a course in gunnery and then served as gunnery officer in the QUEEN ELIZABETH between 1922-4. He later took the naval staff course in 1924 after which he served in the Atlantic Fleet as staff officer, operations. Troubridge was appointed to the royal yacht VICTORIA AND ALBERT in 1928 and promoted commander in 1929; later being promoted captain in 1934 at the age of thirty-nine. In that rank he was appointed naval attache in 1936. On 1 January 1940, Troubridge was appointed commander of the aircraft-carrier FURIOUS in the Home Fleet. In June 1941 Troubridge was appointed to command the battleship NELSON at Gibraltar. Troubridge later took command of the aircraft-carrier INDOMITABLE, taking part in the assault and capture of the base of Diego Suarez in Madagascar in 1942. Troubridge was promoted to rear-admiral in 1943 and in 1944 appointed to command a force of nine British and American escort-carriers to cover forces invading the south of France. For his distinguished service in this operation he was appointed CB. On 1 May 1945 Troubridge was made fifth sea lord on the Board of Admiralty, with special emphasis on the naval air service. Later in that year he was promoted KCB. In 1947 he was promoted vice-admiral.