Name
- George IV, King of Great Britain and Ireland, 1762-18301
- Ghillini, Michael, of Cagliari, musician, composer and diplomat, fl 1758-18011
- Glover, P, correspondent of Francis Godolphin Osborne, 5th Duke of Leeds, fl 17861
- Goertz, Johann Eustach, Count, diplomat, 1737-18211
- Gosling, John, army officer and correspondent of Francis Godolphin Osborne, 5th Duke of Leeds, fl 17871
- Gough, George, correspondent of Francis Godolphin Osborne, 5th Duke of Leeds, fl 17891
- Gregory, G, correspondent of Francis Godolphin Osborne, 5th Duke of Leeds, fl 17901
- Gregory, William, Consul at Barcelona, fl 1777-18101
- Grey, Thomas, Under Secretary of State for the American département, 2nd Baron Walsingham (1781)1
- Hale, John, correspondent of Francis Godolphin Osborne, 5th Duke of Leeds, fl 17871
- Hall, Samuel, of Add MS 280601
- Hamilton, Douglas, 8th Duke of Hamilton1
- Hamilton, William, Knight, British envoy at Naples and art collector, 1731-18031
- Hardinge, George, Attorney-General to the Queen1
- Hartley, Thomas, Lord Mayor of York1
- Haslang, Sigismund Franz von, Count afterwards Bavarian minister in London1
- Hawke, Martin Bladen, 2nd Baron Hawke1
- Hay, Edward, Secretary to the Council of Fort William1
- Hay, Thomas, 8th Earl of Kinnoul1
- Hemsworth, Daniel Addison1