Circular to Territorial Force Association, Edinburgh concerning his proposals to the Secretary of State for War for encouraging recruitment to the Territorial Force, Nov 1913. Papers and photographs relating to his service with the Royal Scots, 1916, 1920, 1922, 1926, principally comprising his report on the failure of the attack on the German line at Longueval by 16 Royal ScotsRegt during the first Battle of the Somme, 3-4 Aug 1916, dated 8 Aug 1916; associated correspondence, notably a confidential letter to Commander, 3 Corps from Maj Gen L Nicholson, Commanding 34 Div, giving his assessment of the incident, 18 Aug 1916.

Copy of manuscript account by Drummond relating to 1 Bn, Royal Ulster Rifles service during D Day, Operation OVERLORD, the Allied invasion of occupied France, and subsequent operations in Longueval, France, 1944, with four photographs including parade in Belfast, Northern Ireland [1936], groups of officers, Royal Ulster Rifles [1946] and Victory in Europe (VE) Day parade, Belfast, May 1945.