Name
- Poulett, John, 2nd Earl Poulett7
- Pratt, William Edward, Clerk, Dead Letter Office7
- Pringle, John, Baronet, Physician to George III7
- Robinson, Frederic John, Viscount Goderich (1827) and (1833) Earl of Ripon, Private Secretary to Lord Hardwicke7
- Royal College of Physicians7
- Rushout, George, Captain; MP7
- Ryder, Dudley, 1st Earl of Harrowby7
- Scawen, Thomas, MP; of Add MS 353917
- Schaiblin, Christian Benjamin7
- Seymour, Charles, 6th Duke of Somerset, English peer, 1662-17487
- Stewart, John, Attorney General for Ireland7
- Stuart, Charles Edward Louis John Casimir Sylvester Severino Maria, Prince, 1720-17887
- Temple, Henry John, 3rd Viscount Palmerston, Prime Minister, 1784-18657
- Townshend, Charles, Chancellor of the Exchequer (1766), etc7
- Tracy, Robert, MP; of Add MS 355867
- Trembley, Abraham, Swiss naturalist7
- Trench, Power, Bishop of Waterford7
- Trench, Richard, 2nd Earl of Clancarty (1805)7
- Troy, John Thomas, DD, RC Archbishop of Dublin7
- Turner, Charles, MP; of Add MS 357987