15. File 3086/1915 Pt 5 'Arabia: Red Sea – Trade during German War' Date: 1915/1919 Language: English Geographic region: Aden
16. File 3086/1915 Pt 6-7 'ARABIA: RED SEA ISLANDS – AFFAIRS 1915-19' Date: 1915/1919 Language: English Geographic region: Aden
17. File 2006/1917 'ARABIA: ARAB CONFEDERACY' Date: 1917/1917 Language: English Geographic region: YemenArabian PeninsulaAden Protectorate
18. File 3086/1915 Pt 8-9 'ARABIA:- ARMS FOR SAYYID IDRISSI' Date: 1915/1925 Language: English Geographic region: Aden Protectorate