Name
- Renard, Louis, Agent du Roy de France dans les Pays-Bas4
- Ricardus Anglicus, Magister; of Sloane MS 12554
- Ridley, Humphrey, MD, 1653-17084
- Roberts, John, Steward of Chelsea Manor4
- Scheuchzerus, Johannes, Professor of Natural Philosophy at Zürich4
- Schrödter, Christophorus, Chief Physician to Gustavus Adolphus, Duke of Mecklenburg-Schwerin, at Güstrow4
- Sendivogius, Michael, a Pole4
- Serenius, Jacob, Bishop of Strengnäs in Sweden4
- Seward, Charles, of Kensington4
- Seytres, Joseph, Marquis de Caumont4
- Sheldrake, Timothy, MD, of Norwich4
- Shirley, Mary, wife of Washington, 2nd Earl Ferrers4
- Smith, Elisha, Lecturer at Wisbeach, and Rector of Tydd St. Giles, county Lincolnshire4
- Society for Promoting Christian Knowledge, London4
- Somerset, Henry, 1st Duke of Beaufort 16824
- Somerset, Mary, wife of Henry, 1st Duke of Beaufort4
- Spencer, Charles, 3rd Earl of Sunderland, 1675-17224
- Staphorst, Nicolaus, of Hamburg; Director of the Chemical Laboratory of the Royal College of Physicians, London4
- Starkey, George, alias Eirenæus Philalethes4
- Sutherland, James, Superintendent of the Physic Garden at Edinburgh4