Name
- Emir of Qatar, Mid 19th century-11
- Anglo-Iranian Oil Company Limited, 1909-19549
- Arabian American Oil Company, 1933-19888
- IOR/R/15/1/6688
- Bahrain Petroleum Company, Chief Local Representative, 1930-c 19714
- Foreign Office, 1782-19684
- Secretary of State for India and Burma, United Kingdom, 1935-19474
- Air Ministry, 1918-19643
- Colonial Office, 1854-19663
- Holmes, Frank, geologist, 1874-19473
- Ministry of Power, 1942-19693
- HM Ambassador to Saudi Arabia, 1930-2
- Secretary of State for India, United Kingdom, 1858-19352
- Adviser to the Government of Bahrain, 1926-19571
- Bahrain Petroleum Company, 1929-1
- Bahrain Political Agency, Confidential Office, 1900-19511
- British Overseas Airways Corporation, 1939-19741
- Government of India, 1834-19471
- Gray, Mackenzie and Company Limited, shipping agents, 1937-20101
- King of Bahrain, 1783-1