Names
- Omar Khayyam, ca. 1024-ca. 1123, poet.1
- Osler, Sir William, bart., 1849-1919, physician.1
- Ostrom Workshop1
- Ostrom, Elinor1
- Ostrom, Vincent, 1919-20121
- Owen, Robert, 1771-1858, social reformer.1
- Pacific Oaks1
- Parallax Communications, Inc.1
- Parks, Roger1
- Parrish, Maxfield, 1870-1966, artist.1
- Patin, Guy, 1601-1672, physician, author.1
- Patman, Wright1
- Pattricke, Fr., fl. 1605.1
- Payne, Joseph Frank, 1840-1910, physician.1
- Peabody, Nathaniel, fl. 1865, pharmacist.1
- Pembroke, Philip Herbert, 4th earl of, 1584-1650, parliamentarian.1
- Petrie, Sir William Matthew Flinders, 1853-1942, egyptologist.1
- Philanthropic Roundtable1
- Phillips, Kelvin Zachary1
- Pierre René Choudieu, 1761-1838, deputy and secretary of the National Assembly;1