Notes on European military history, with an especial focus on British forces, covering the period from the seventeenth century to the 1870s, but predominantly c.1750 to c.1850 (10 vols.); on European military campaigns, seventeenth century through to the Second World War (9 vols.); biographical notes on officers and others connected with military campaigns, especially for the Napoleonic Wars and the Peninsular War, seventeenth to the late nineteenth centuries (11 vols.); biographies of officers in the Adjutant General's Department, brigade majors and aides-de-camp, for the Peninsular War (3 vols.), with a card index of Commissariat officials
Notes on the Murray papers in the National Library of Scotland and other sources relating to the Peninsular War (2 boxes and 7 vols.); transcript of Scovell's Peninsular diary (PRO WO 37/4, 6, 7A and 7B); extracts from the journals of Sir William Henry Clinton, 1786-1834, in the John Rylands University Library of Manchester; transcript of an autobiographical memoir of Sir Robert Hugh Kennedy
Notes for a biography of Sir George Murray (6 vols.), with photographs of buildings used by Wellington and Murray in the Peninsula.