John F. Crosby was born in Washington, D.C., and grew up in Mobile, Alabama. He received his B.A. from Georgetown University in 1966 and his Ph.D. from the University of Salzburg, Austria, in 1970. His teachers in philosophy were Dietrich von Hildebrand and Josef Seifert. He taught at the University of Dallas from 1970-87 and at the International Academy of Philosophy, Liechtenstein, from 1987-90. He has been professor and chair of philosophy at Franciscan University of Steubenville since 1990, where he also established an M.A. program in philosophy with a special concentration in the philosophy of the person. From 1983 to 1993 he taught each spring a philosophy course at the John Paul II Institute for Marriage and Family in Rome. He has published extensively on the thought of John Henry Cardinal Newman, as well as on the thought of Karol Wojtyla/Pope John Paul II. His books on personalist philosophy are The Selfhood of the Human Person (1996) and Personalist Papers (2003). He and his wife, Pia, are the parents of six children.
Of his great friend and mentor:
"I first met Dietrich von Hildebrand at Georgetown in 1966 and was profoundly impressed by his Christian wisdom and Christian witness. I became his student in philosophy and had the great privilege of spending much time with him during the last eleven years of his life. Besides being my teacher in philosophy he became a trusted friend and mentor during those years."