- O'Riley, Addie1
- O'Riley, Kathleen1
- O'Riley, Mamie1
- Owens, Frank Capers, 1898-19831
- Owens, Lawrence Beacham, 1869-19411
- Panoramas1
- Payne, John, 1912-19891
- People displaced by eminent domain1
- Pershing, John J. (John Joseph), 1860-19481
- Pipe smoking1
- Portrait painters1
- Preston, William C. (William Campbell), 1794-18601
- Prize contests in advertising1
- Reamer, William Schell, 1856-19361
- Rhett, John T.1
- Rice1
- Savannah River Plant (E.I. du Pont de Nemours & Company)1
- Simkins, Modjeska Monteith, 1899-19921
- Simpson, H. D.1
- Sisk, Felton Clark1