Name
- Mackintosh, James, of Add MS 345681
- Maginn, John, Rector of Castletownroche, county Cork1
- Mairis, Valentine Hale, Major1
- Maitland, Samuel Roffey, Librarian and Keeper of Manuscripts Lambeth Palace1
- Maitland, Sarah, wife of Sir P Maitland1
- Major, Richard Henry, Keeper of Printed Maps and Plans British Museum1
- Malcolm, Pultney, Admiral; GCB1
- Malet, W Wyndham, Reverend1
- Mansel, Frances Charlotta, wife of Admiral R Mansel1
- Mansel, Henry Longueville, metaphysician, Dean of St Paul's1
- Mant, Frederic Woods, Vicarof Stanford, county Norfolk1
- Mare, Samuel1
- Markham, David Frederic, Rector of Great Horkesley1
- Marryat, Charles, Reverend1
- Marshall, William Knox, Reverend; of Bridgnorth1
- Martin, John, of Add MS 345791
- Martin, T-1
- Martyn, Claude, Reverend1
- Mascarène, French teacher at Oxford1
- Maskelyne, Mervyn Herbert Nevil Story-, minerologist, politician and photographer, 1823-19111