Authors: Jose
- Pike, Joseph 1883-1956
- Pillot, Eugene 1886-1966
- Pinetti, Giuseppe 1750-1800
- Piñeyro, Enrique 1839-1911
- Pinto Carneiro Perestrello, Josephina -
- Pinto, José Nicolau de Massuelos 1770-1825
- Planta, Joseph 1744-1827
- Pogány, József 1886-1938
- Pohle, Joseph 1852-1922
- Poli, Oscar de (Philippe François Joseph) 1838-1908
- Pollard, Josephine 1834-1892
- Pollen, Arthur Joseph Hungerford 1866-1937
- Pope, Joseph, Sir 1854-1926
- Pott, Joseph Holden 1758-1847
- Premio-Real, comte de 1840-1888
- Prichard, J. V. -
- Priestley, Joseph 1768-1833
- Priestley, Joseph 1733-1804
- Prieto, Guillermo 1818-1897
- Proudhon, P.-J. (Pierre-Joseph) 1809-1865
- Puffer, Joseph Adams 1872-1958
- Pyle, Joseph Gilpin 1853-
- Quadrupani, Carlo Giuseppe -
- Queirós, Eça de 1845-1900
- Quiroga, José -1784
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