Philip S. Klein (1909-1993) completed his doctorate at the University of Pennsylvania and then returned to his undergraduate alma mater, Franklin and Marshall College, where he taught for a time before beginning a long and distinguished career at The Pennsylvania State University until his retirement in 1972. Among his publications are Pennsylvania Politics, 1817-1832: A Game Without Rules (1940), a definitive biography President James Buchanan (1962), and, with Ari Hoogenboom, the acclaimed college textbook A History of Pennsylvania (1973, 1980).  The PHA’s biannual book and article prizes are both named in his honor.