Creator
- Piggott.1
- Pike, Albert, 1809-18911
- Pillsbury Picture Co.1
- Pinch's Novelty Photo Postals.1
- Pinckney, Henry Hammond, 1861-1
- Pipkin, J. J. (James Jefferson), 1861-1941, author.1
- Piranesi, Giovanni Battista, 1720-1778.1
- Pitas, O. B.1
- Pitt, John A.1
- Pitts Theology Library, collector1
- Pittsburgh Courier Publishing Co.1
- Pittsburgh Home Photographer.1
- Pius, N. H.1
- Plaatje, Sol. T. (Solomon Tshekisho), 1876-1932.1
- Planet News Ltd.1
- Platt, Mac1
- Plaxco Printing Press (Sanford, Fla.)1
- Plecker & Maury (Lynchburg, Va.)1
- Plecker & Maury.1
- Plumbe, Samuel.1