- The church and the age; an exposition of the Catholic Church in view of the needs and aspirations of the present age
- Isaac T. Hecker, the Diary: Romantic Religion in Ante-Bellum America (Sources of American Spirituality)
- Questions of the Soul
- A Bit of Unpublished Correspondence Between Henry D. Thoreau and Isaac T. Hecker - Primary Source Edition
- The Catholic Church in the United States: Its Rise, Relations with the Republic, Growth, and Future Prospects












