Science Fiction Writers of America; Edited by Ben Bova (Poul Anderson; John W. Campbell (Don A. Stuart); Lester Del Rey; Robert A. Heinlein; C.M. Kornbluth; Henry Kuttner; C.L. Moore (Lawrence O'Donnell); Eric Frank Russell; Cordwainer Smith; Sturgeon Etc
Alfred (editor) (Philip K. Dick; Lawrence Block; Fredric Brown; John Collier; John D. MacDonald; Ross MacDonald; Richard Matheson; William F. Nolan; Bill Pronzini; Ray Russell; Henry Slesar; August Derleth; Robert Edmond Alter; Robert Bloch) Hitchcock