38. 'File 19/109 II (C 17) Bahrain: Relations of Chief with other Foreign Powers' Date: 1913/1922 Language: English Geographic region: ZubarahAl-Hasa
39. 'File 19/191 III (C 56) Bahrain, Persian Claim To' Date: 1932/1935 Language: English Geographic region: BahrainBūshehr
40. ‘HYDROGRAPHY – SELF PROPELLED BARGE CHANNELS. ZELLAQ, BAHREIN TO ARABIA. BR-513’ Date: 1938/1938 Language: English Geographic region: Kingdom of HejazHidjaz
41. ‘BAHREIN & VICINITY. BR-486/1’ Date: 1939/1939 Language: English Geographic region: Kingdom of HejazHidjaz
42. 'File 19/126 Bahrain Customs' Date: 1930/1930 Language: English Geographic region: BahrainBūshehr
43. 'File 19/172 I (C 23) Bahrain Levy Corps' Date: 1924/1936 Language: English Geographic region: BahrainBūshehr
44. 'File 19/204 I (C 55) Bahrain, Appointment of Financial Adviser, Belgrave and Assistant, Luard' Date: 1925/1927 Language: English Geographic region: BahrainBūshehr
45. 'File 19/165 I (C 18) Bahrain Reforms' Date: 1922/1923 Language: English Geographic region: BahrainBūshehr
46. 'File 19/12 Bahrain, Precis of Zobara Affairs in 1895' Date: 1895/1895 Language: English Geographic region: ZubarahBahrainBūshehr
47. 'File 19/75, 189, 220, 223 Complaint of Shaikh Hamad ibn Muhammad Al Khalifa against Shaikh `Isa; Shaikh Khalifa ibn Hamad Al Khalifa; presentation of Kharita to Shaikh of Bahrain; correspondence about Bahrain ruling family' Date: 1899/1938 Language: English Geographic region: BahrainBūshehr
48. 'File 19/109 I (C 12) Bahrein Chief's relations with British Govt. and other Powers' Date: 1903/1912 Language: English Geographic region: BahrainBūshehr