Names
- Penn Central Transportation Company.1
- Perguson, Dee1
- Peters, Rebecca Todd1
- Peterson, John1
- Pfohl, Russell1
- Pharr, Virginia1
- Phelps, C.A. (New Castle, IN)1
- Phi Beta Kappa1
- Phi Betta Kappa1
- Phi Gamma Delta1
- Phi Kappa Psi1
- Philadelphia International Records1
- Pickering, Timothy, 1745-18291
- Pinnell, George1
- Pipp, Frank H.1
- Pittsburgh Symphony Orchestra1
- Point, John1
- Pointer, Nelson1
- Poli, Faustino G.1
- Polk, Jim1