Copies of diaries, 1911-1916, covering his flying training, 1911-1914, his service with the Royal Naval Air Service in the UK, [1914]-1915, Gallipoli, 1915, Bulgaria, 1915, and Egypt, 1916. Copy of account of his imprisonment in Turkey, Mar-Jul 1917, written in [1917], with newspaper cutting describing conditions in prisons in Constantinople, [1917]. 'The story of the men and aircraft of the Fleet Air Arm', illustrated pamphlet prepared for the Directorate of Navy Recruiting by the Central Office of Information, dated 1985.

Midshipman's journal, Sep 1917- Jan 1921, covering his service in the North Sea, 1917-1919, Baltic, 1919, and Mediterranean, Turkey and Black Sea, 1920, notably his experiences during the Allied occupation of Constantinople, 1920.

Papers of Alexander Van Millingen on history, architecture and archaeology, c1870s-c1900s (mostly undated), relating mainly to Constantinople and Byzantium but also to Biblical history, Greek and Roman history, history of philosophy and religion, early church history, and history of art, and including manuscript notes (some in notebooks), manuscript and typescript drafts, news cuttings, sketches, transcriptions and rubbings of inscriptions, and a few items of personal material, notably financial accounts and address books; photographs (some labelled as unpublished), plate proofs and sketches of buildings and monuments, and reproductions of inscriptions, including the walls of Constantinople and churches including Saint Eirene, Theodore, Theodosia, Sergios and Bacchos, Peter and Mark, Andrew in Krisis, Ioannes in Troullos, Christos in Chora, and Pantokrator (some items are endorsed with notes); photograph album of people and places in France, Germany, Italy, Austria, England, Montenegro, India, Tunis and Malta, 1889-1895 (where dated); plans of buildings, comprising the Egyptian obelisk in the Hippodrome, Constantinople, and the churches Saint Mary Mouchliotissa, Thekla, Mary Panachrantos, Peter and Mark, Mary Diaconissa, Theodosia, Saviour Pantepoptes, Theodore Thetiro, Mary Pammakaristos, John the Baptist of the Studion, the Church of the Myrelaion, the Monastir Mesjedi, the Refectory of the Monastery of Manuel, the Bogdan Serai, the Sanjakdar Mesjedi, and the Balaban Aga Mesjedi.

Two manuscript narrative diaries by Webb-Bowen, detailing the voyage of HMS IRON DUKE to the Crimea, Russia, via Gibraltar, Malta, Suda Bay, Crete, and Constantinople, Turkey, and subsequent operations in the Black Sea and Turkey, 21 Mar 1919-30 Nov 1920; typescript orders by Adm Sir John Michael de Robeck, 1st Bt, Commander-in-Chief, Mediterranean Fleet, for officers and men of HM Ships IRON DUKE, MARLBOROUGH, BENBOW, MONTROSE, SPEEDY and SPORTIVE, relating to landing operations against Nationalist Turkish forces, Gemlik and Yeni Keui, Turkey, Jul 1920.