Two regular spicy authors, Norman Daniels and Manly Wade Wellman, do not appear to have been frequent contributors to the pages of SPICY MYSTERY STORIES.  Daniels, writing as Kirk Rand, had "Hangman's House" printed in the July 1935 issue, but that was it, while Wellman, whose spicy work appeared under the name Wade Wells, does not seem to have ever written for SPICY MYSTERY STORIES.  Considering how much fantasy Wellman wrote, he would have seemed a natural for its pages.