Spiritualism became quite popular in the mid to late 19th century. Interestingly enough, and not surprisingly, some of those who had been interested in the utopian movements were attracted to spiritualism. For example, James Allen Noyes, after the failure of the Alphadelphia Association, eventually moved to Liberal, Missouri, a town founded for free thinkers. Spiritualism proved to be popular there and the family was deeply involved. Meanwhile, back in Michigan, Spiritualism was popular with some others who had been involved in the Alphadelphia Association.
Barbara Triphahn, a descendant of one of the Alphadelphia Association families who lived in Michigan, sends the below copy of the National Spiritualist Association Declaration of Principles 1914-1918.
I’m posting the images as I’ve not done a transcription.
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NATIONAL SPIRITUALIST ASSOCIATION DECLARATION OF PRINCIPLES 1914-1918