Name
- Keyserling, Hermann Alexander, Count German philosopher1
- Knollys, Francis, 1st Viscount Knollys, courtier, 1837-19241
- Lang, William Cosmo Gordon, Archbishop of Canterbury, Baron Lang, 1864-19451
- Law, Margaret Dorothy, Director, Encyclopaedia Britannica; OBE 19511
- Lee, James Melvin, American journalist1
- Leif-Jones, Leifchild Stratton, Baron Rhayader1
- Lewis, Frederick Gustav, Colonel; CB; CMG1
- Lishman, Fenwick, MB; of Crook, county Durham1
- Long, Robert Edward Crozier, author and journalist1
- Longford, Terence Ackley Fitzmaurice, Commander; RN; Secretary, National Liberal Club1
- MacCarthy, Desmond, author; Knight 19511
- MacCullagh, Francis, author and journalist1
- Maffey, John Loader, 1st Baron Rugby, private sec to the Viceroy of India1
- Marsh, Edward Howard, Knight, civil servant and patron of the arts, 1872-19531
- Maxwell, Alexander, Permanent Under-Secretary of State, Home Office1
- Maxwell, John Grenfell, Lieutenant-General; KCB; General 19191
- McKenna, Reginald, PC, MP1
- Meiklejohn, Roderick Sinclair, KBE1
- Meyer, William Stevenson, Financial Secretary to the Government of India1
- Middlemas, Robert, of Walters & Co., tobacco manufacturers, of Houndsditch1