- 8 boxes
- Collection consists of 9 series. External Correspondence (3 boxes) includes letters from mediums, spiritualists, and researchers of spiritualistic phenomena. The remaining series in the collection are Commission Correspondence (21 folders), Commission Report (7 folders), Investigation Materials (10 folders), Spiritualist Photographs (3 folders), Newspaper Clippings (6 folders), Publications (17 folders), Miscellaneous (3 folders), and Oversize (2 boxes + 1 large chart).
Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]