Name
- O'Sullivan, Samuel, Reverend1
- Oliphant, Laurence, of Add MS 389691
- Orton, Arthur, the Tichborne Claimant1
- Peacock, William M-1
- Pelham, Thomas Henry William, CB1
- Piccolomini, Francesco, of Add MS 391681
- Picton, Thomas, Lieutenant-General GCB1
- Pitt, William, Prime Minister, called 'the younger', 1759-18061
- Price, John, Reverend Bodley's Librarian1
- Reynolds, John, Minister of St Thomas's, Berea, Natal1
- Royal Household1
- Salgas, C-, tutor to the Royal Princes1
- San Girolamo, Abate di; I nternuncio Brussels1
- Sandys, Frederick, painter1
- Sayn-Wittgenstein, Carolyne, Princess1
- Sempill, Hagart1
- Shelley, Percy Bysshe, poet, 1792-18221
- Shenstone, William, poet1
- Simpson, Sophia1
- Sims, Thomas, photographer1