- Unitarianism, some past history and present meanings (Beacon reference series) by Harry Barron Scholefield, 1950
- Unitarianism in America: A History of Its Origin and Development by George Willis Cooke, 2002-07
- Philadelphia Unitarianism 1796-1861 by Elizabeth M. Geffen, 1961
- Unitarianism In Utah - A Gentile Religion In Salt Lake City, 1891-1991 by Stan and Miller, Lorille Horne Larson, 1991
- "They thought for themselves": A brief look at the story of Unitarianism and the liberal tradition in Wales and beyond its borders by D. Elwyn Davies, 1982
- The Boston Religion: Unitarianism in Its Capital City by Peter Tufts Richardson, 2003-01
- One hundred years of upstart Unitarianism in the Bible belt: An oral history of the First Unitarian Church of Oklahoma City by Robert C Hardy, 1991
- Joseph Priestley: The Old Unitarianism and the New by Charles Carroll Everett, 2005-12-30
- Why We Should Be Loyal to Unitarianism
- A Stream of Light: A Sesquicentennial History of American Unitarianism
- THE EPIC OF UNITARIANISM: Original Writings from the History of Liberal Religion by David Parke, 1960
- Unitarianism, The Doctrine Of The Gospel: A View Of The Scriptural Grounds Of Unitarianism by Lant Carpenter, 2007-07-25
- Discourses and discussions in explanation and defence of Unitarianism by Orville Dewey, 1840
- Unitarianism in America (A History of its Origin and Development) by Willis George Cooke, 2007-06-12
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