Name
- Foreign Office, 1782-19682
- British Embassy, Washington, Late 19th century-1
- British Middle East Office, Development Division, 1945-1961?1
- Cabinet Office, 1916-1
- Colonial Office, 1854-19661
- Commonwealth Relations Office, 1947-19661
- Department of State, United States, 1789-1
- Government of India, Foreign and Political Department, 1783-19371
- HM Ambassador to Iraq, 1932-1
- Indian Political Service, External Affairs Department, 1937-19471
- Middle East (Official) Committee, 1940s1
- Political Resident, Persian Gulf, 1822-19711
- President, United States of America, 1789-1
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19701
- United States Ambassador to Iraq, 1931-1