Records of the Secretary's Department. The correspondence and papers of the Secretary's Department are, by nature of the administrative arrangements of the Admiralty, indistinguishable from those of the Admiralty as a whole.
Some Military Branch letter books and various branch registers are in ADM 13. Courts martial records are in ADM 1, ADM 13, ADM 156 and ADM 194; see also ADM 153.
Some papers relating to awards to inventors are in ADM 245. Military Branch files relating to fishery protection and used by the Official Historian of the 'Cod War' with Iceland, 1958-1961, are in ADM 306.