2. ‘File 28/1 D Local Volunteer Defence Force. British N.C.O. Instructors for Defence Force’ Date: 1940/1942 Language: English Geographic region: Bahrain
3. ‘File 28/1 E Defence Officer, Persian Gulf. Station Commander Bahrain’ Date: 1939/1944 Language: English Geographic region: Bahrain
5. ‘File 28/1 L I BAPCO refinery guards’ Date: 1939/1942 Language: English Geographic region: Bahrain
7. ‘File 28/32 I Recruitment in Persian Gulf states’ Date: 1942/1943 Language: English Geographic region: BasraKuwaitMuscat
11. ‘File 28/61 War. BAPCO and A.I.O.C. – Attitude of employees regarding enlistment in armed forces at outbreak of war’ Date: 1939/1939 Language: English
12. 'File 6/6 Proposal to post a Special Service Officer in the Gulf; appointment of Air Liaison Officer' Date: 1929/1946 Language: English