During his later years, Harry Houdini crusaded against false mediums as he had previously done with fraudulent magicians. One medium he took particular interest in was “Margery.” In this image, he is sitting beside the box, holding Margery’s left hand.
“Margery in box,” Folder “Margery”, Box D, Eileen J. Garrett Parapsychology Foundation Collection, Collection 331, Special Collections, University of Maryland, Baltimore County (Baltimore, MD).