 According to Randi, author William Lindsay Gresham told Randi "around 1960" that he had seen these mouth organs in the Home collection at the Society for Psychical Research (SPR).Eric J. Dingwall, who catalogued Home's collection on its arrival at the SPR does not record the presence of the mouth organs.According to Peter Lamont, the author of an extensive Home biography, "It is unlikely Dingwall would have missed these or did not make them public.