Name
- Law, Andrew Bonar, businessman and prime minister, 1858-19231
- 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
- MacDonald, James Ramsay, Prime Minister, 1866-19371
- Maffey, John Loader, 1st Baron Rugby, private sec to the Viceroy of India1
- Marjoribanks, Edward, 2nd Baron Tweedmouth1
- Marsh, Edward Howard, Knight, civil servant and patron of the arts, 1872-19531
- Mary, Queen Consort of King George V, 1867-19531
- Masefield, John Edward, Poet Laureate, 1878-1967, http://isni.org/isni/000000...1
- Maxwell, Alexander, Permanent Under-Secretary of State, Home Office1
- Maxwell, John Grenfell, Lieutenant-General; KCB; General 19191
- McDonnell, Schomberg Kerr, Private Secretary to Lord Salisbury; KCB 19021
- Meiklejohn, Roderick Sinclair, KBE1