Name
- Nostell Priory, Yorkshire1
- Nowell, Family1
- Offley, Family1
- Oldfield, Family1
- Ormerod, Family1
- Orreby, Family1
- Orrelle, Family1
- Oseney Abbey, Oxfordshire1
- Osgodeross Wapentake, county Yorkshire1
- Parre, Family1
- Paston, Family1
- Pershore Abbey, Worcestershire1
- Phillipps, Thomas, 1st Baronet, collector of books and manuscripts, 1792-1872, http://isni.org/isni/000000...1
- Pilkington, Family1
- Poole, Family1
- Pryme, Abraham1
- Radcliffe, Family1
- Ravenscrofte, Family1
- Remembrancer's Office1
- Reresby, Family1