Name
- Maher, Patrick1
- Maitland, Frederic, Colonel1
- Maltby, Edward, Bishop of Durham, 1770-18591
- Manners, Mary Isabella, née Somerset, wife of Charles 4th Duke of Rutland, politician and society hostess, 1756-18311
- Marey1
- Maria and Peter III, of Portugal1
- Marray, John, 4th Duke of Atholl1
- Marsden, Alexander, Under-Sec for Ireland1
- Marsham, Charles, 1st Earl of Romney1
- Martin, Matthew1
- Marwood, William, of Add MS 331071
- Matthews, James, Reverend1
- Mawe, John1
- Maxwell, P-, Aide - de - Camp to General Stewart1
- Maziere, Bartholomew1
- McCracken, Rose Ann1
- McDonogh, Bryan, acting British consul at Tripoli, fl 1801-18031
- Measor, Paul1
- Mello de Pinto, Luis, Chev.; Portuguese Envoy to England1
- Melville, David, Lord Balgonie, afterwards Earl of Leven and Melville1