Perry, Ralph Barton, 1876–1957, American realist philosopher, b. Poultney, Vt., grad. Princeton (B.A., 1896) and Harvard (Ph.D., 1899). He taught at Harvard from 1902, becoming professor of philosophy in 1913 and professor emeritus in 1946. He revised (1925) Alfred Weber's History of Philosophy. Editor of the works of William James, he won the 1936 Pulitzer Prize in biography for The Thought and Character of William James (1935). His other writings include The New Realism (1912), General Theory of Value (1926), Puritanism and Democracy (1944), The Realms of Value (1954), and The Humanity of Man (1956).