Name
- Morris, Henry, of Add MS 148981
- Morris, Robert, of Add MS 149571
- Mortimer, Roger, of Add MS 149351
- Morys Richard1
- Morys ab Howel1
- Morys ab Llywelyn1
- Mostyn, Family1
- Nicaise, Claude, Abbé; French antiquary1
- Nicolson, William, Bishop of Carlisle (1702), of Derry (1718), and Archbishop of Cashel (1727)1
- Owain Twna1
- Owen, Edward, of Add MS 149041
- Owen, Humphrey, of Add MS 148661
- Owen, Jane1
- Owen, John, MP for Anglesey1
- Owen, Lewis, Serjeant-at-Law1
- Owen, Mrs; of Tre Ddavydd, near Aberffraw1
- Owen, Thomas, Reverend1
- Owen, Thomas, o Lanelwy1
- Owen, Thomas, of Add MS 148731
- Owen, William, alias Idrison, afterwards Owen Pughe1