- STD (Doctor of Sacred Theology), Ph.D., 1972, Catholic University of Louvain, Belgium.
- LTD (Licentiate in Sacred Theology, 1970, Catholic University of Louvain, Belgium.
- LL.D., 1995, Honorary Doctorate, North Park University, Chicago
- Diplome Superieur in Catechetical Theology (M.A. equiv.), 1967, Lumen Vitae, Brussels, Belgium
- M.A., 1963, Villanova University
- B.A.,b1954, La Salle University
Areas of Interest
- The theology and spirituality of Dietrich Bonhoeffer
- Spirituality and revelation theology
- The German Resistance Movement against Hitler and the Nazi Government
- Ethics and the life sciences (biomedical ethics)
- Ethics and the social sciences
- Liberation theology
- Peace and justice issues
- Contemporary religious thought
- The religious history of Ireland
- Irish language and culture
Recent Publications and Presentations
- Reading Bonhoeffer: A Guide to His Spiritual Classics and Selected Writings on Peace, Eugene, Or: Wipf & Stock, 2008.
- The Cost of Moral Leadership. Grand Rapids, Mi: Wm. B. Eerdmans, 2003.
- Liberating Faith : Bonhoeffer’s Message for Today. Eugene, Or.: Wipf & Stock, 2002.
- A Testament to Freedom: The Essential Writings of Dietrich Bonhoeffer. NY: Harper Collins, 1990.