Name
- Luther, John Thomas, Town Clerk of Clonmel1
- MacCarthy, John George, Irish Land Commissioner1
- MacColl, Malcolm, Canon of Ripon1
- Macknight, Thomas, journalist1
- Mansfield, Margaret, widow of William 1st Baron Sandhurst1
- Mather, William, MP1
- Mays, Charles, of Forest Hill1
- McCarthy, Alexander, Town Clerk of Cork1
- McLaren, Walter Stowe Bright, MP1
- Moonlight, Captain, pseudonym1
- Moore, William, RC priest of Haydock St Helens1
- Morley, John, Viscount Morley of Blackburn, statesman, 1838-19231
- Morris, Michael, Baron Morris of Spiddal, 1st Baron Killanin1
- Moss, William, of Harrow Liberal Club1
- Mundella, Anthony John, PC, MP1
- Near, Isaac, of Dormans Land Surrey1
- Noel, Ernest, MP1
- O'Brien, Richard Barry, author1
- O'Brien, William, MP, founder of the United Irish League, 1852-19281
- O'Leary, Richard, Sergeant . RE1