Name
- Madonald, Archibald, 1st Baronet (1813)2
- Mahony, William C-, Captain2
- Manesty, Samuel, merchant and diplomat, 1758-18122
- Mansi, Marquis2
- Marey et Thurot, wine-merchants2
- Matra, James M-2
- McDouall, Andrew2
- Merveldt, C-, Count2
- Merveldt, Maximilian2
- Metzburg, Baron2
- Molloy, Charles William2
- Monné, Chrétien Joseph2
- Montagu, Elizabeth, wife of Edward Montagu, authoress2
- Montagu, John, 4th Earl of Sandwich, statesman, 1718-17922
- Morton, Charles, Dr2
- Morton, Thomas, of Add MS 355292
- Mulcaster, Frederick George, Colonel; of Add MS 355372
- Murray, James, General; MP2
- Murray, Patrick, 5th Baron Elibank2
- Murray, Richard, Lieutenant; RN2