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.

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.