1. ‘Sketch map showing the approximate locations of the BAHREIN OIL Co’s. establishments and other important points.’ Date: 1939/1939 Language: English Geographic region: Bahrain islands Extent: 1 map
2. 'Memorandum on Bahrein' Date: 1947/1947 Language: EnglishFrench Geographic region: Bahrain islands Extent: 1 file (31 folios)
3. Ext 254/45 'Memorandum by Mr. L. Lockhart on "The History of the Bahrain Islands."' Contributor: Foreign Office Research Department (correspondent) Date: 1945/1945 Language: English Geographic region: Bahrain islands Extent: 1 file (8 folios)
4. File 3104/1915 Pt 10 ‘Mesopotamia: Trade with; liquidation of enemy assets &c; claims against enemy assets’ Contributor: Civil Commissioner, Mesopotamia (correspondent) Date: 1918/1922 Language: EnglishFrench Geographic region: Bahrain islands Extent: 1 item (187 folios)
5. 'Note on Bahrain Islands' Date: 1930/1944 Language: English Geographic region: Bahrain islands Extent: 1 file (5 folios)