- UNITARIANISM & UNIVERSALISM an Illustrated History by Henry H. Cheetham, 1968
- Unitarianism in Brooklyn: A sermon preached ... in the Church of the Saviour, Brooklyn, N. Y., at the commemorative services, held April 25th, 1869, on ... of its first minister; with an account of th by Alfred Porter Putnam, 1869-01-01
- Secret fraternal societies and unitarianism: Can a true Christian belong to such and still honor Christ? by Charles Elsworth Putnam, 1927
- Epic of Unitarianism by David Parke, 1957
- Unitarianism in Dallas, an Outline History of the First Unitarian Church of Dallas, Texas, in Its First Seventy Years, 1899-1968 by Wayne Gard, 1973
- Proceedings of the Unitarian Universalist Historical Society: Unitarianism in its Sixteenth and Seventeenth Century Settings (XX) by Nieto, Friedman, Hirsch, Letocha, Gross, Williams, Manschreck, Erdt, Kiwiet, Bangs Godbey, 1986
- A Third Letter to the Rev. William E. Channing, on the Subject of Unitarianism. by Samuel. Worcester, 1815
- Washington Unitarianism by Laurence C. Staples, 1970
- ASPECTS OF MODERN UNITARIANISM.
- Unitarianism in Utah : a gentile religion in Salt Lake City, 1891-1991 / Stan Larson and Lorille Horne Miller by Stan Larson, 1991
- Christology in American Unitarianism: an Anthology of Nineteenth and Twentieth Century Unitarian Theologians by Prescott B. Wintersteen, 1977
- The Epic of Unitarianism
- A Stream of Light a Short History of American Unitarianism by Conrad Ed. Wright, 1975
- REBELLION IN THE MOUNTAINS THE STORY OF UNIVERSALISM AND UNITARIANISM IN VERMONT by Edith Fox MacDonald, 1976
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