1973. Ph.D. Boston University, Division of Theological and Religious Studies.
1970. Master of Sacred Theology. Boston University School of Theology.
1968. Bachelor of Sacred Theology. St. Joseph Seminary, Teutopolis, IL.
1964. Bachelor of Arts. Quincy University, Quincy, IL.
Contemporary Issues in Bioethics: A Catholic Perspective. With James J. Walter. Sheed and Ward. 2005.
Catholic Social Thought: The Documentary Heritage. Expanded Edition. With David J. O’Brien. Maryknoll, NY: Orbis Books. 2010.
The Franciscan Moral Vision: Responding to God's Love. Co-author.
“The Transhumanist Movement: A Flawed Response to Aging and Its Natural Consequence.” In Aging, Biotechnology, and the Future, eds. C.Y. Read, R.C.Green and M.A. Smyer. Baltimore: The Johns Hopkins University Press. 2008. Pp. 39-57.
“Catholic Health Care: The Social Face of Compassion: Health Progress. 89 (July-August, 2008): 54-57
“’Unbind Him and Let Him Go”: Ethical Issues in the Determination of Proportionate and Disproportionate Treatment.” Theological Studies 69 (2008): 894-917.
“True North: Moral Theology and Catholicism.” America 31 May 2010: 16-19.
A Balancing Act: Religious Freedom.” With David Hollenbach, S.J. America 5 March 2012. Pp. 23-26.