Civil War Pulpit to World's Parliament of Religion presents a comprehensive exposition of the thought of William James Potter, 1829-1893. Potter was a radical minister in the American
freethought tradition who moved from his Quaker foundation to Unitarian Christianity and later to free religion. Potter was a founder and leader of the Free Religious Association, 1867-1920. Following a biographical sketch, consideration is given to philosophical topics, the evolution of humans, religion, and Potter's applied philosophy. Potter's thought is also compared to that of his mentor, Theodore Parker.