Stuart Palmer, Perceval Landon, Anthony Boucher, Fitz-James O'Brien, Philip MacDonald, H.H. Holmes, Theodore Sturgeon, Lawrence E. Spivak, Winona McClintic, Richard Sale, Cleve Cartmill, Oliver Onions, J. Francis McComas, Guy Endore

Edward L. Ferman with Sterling E. Lanier (Contributor), Gahan Wilson (Illustrator), Alfred Bester (Contributor), Baird Searles (Contributor), Zenna Henderson (Contributor), Philip José Farmer (Contributor), Ron Goulart (Contributor), Fritz Leiber (Contributor), Howard Fast (Contributor), Harry Harrison (Contributor), Isaac Asimov (Contributor)

Anthony Boucher with Mildred Clingerman (Contributor), Manly Wade Wellman (Contributor), Frederic Brown (Contributor), Leigh Brackett (Contributor), Bryce Walton (Contributor), P. M. Hubbard (Contributor), Marian Zimmer Bradley (Contributor), Arthur Porges (Contributor)

Anthony Boucher with Chad Oliver (Contributor), Marc Brandell (Contributor), J. Francis McComas (Contributor), Walter M. Miller, Jr. (Contributor), Lord Dunsany (Contributor), Maurice Procter (Contributor), J. B. Morton (Contributor), Richard Matheson (Contributor), Alan E. Nourse (Contributor), Mack Reynolds (Contributor), Charles Beaumont (Contributor), Washington Irving (Contributor)

Mack Reynolds, Anthony Boucher, Charles Beaumont, Manly Wade Wellman, Alice Eleanor Jones, Chad Oliver, P.G. Wodehouse, Damon Knight, August Derleth, Saki, Willard Marsh, Evelyn E. Smith, Carlyn Coffin

Anthony Boucher with Charles W. Morton (Contributor), Philip José Farmer (Contributor), Thomas A. Meehan (Contributor), John Masefield (Contributor), Arthur C. Clarke (Contributor), Kurd Lasswitz (Contributor), G. B. Stern (Contributor), Zenna Henderson (Contributor)

Poul Anderson, Anthony Boucher, Stephen Arr, Charles Beaumont, Bob Ottum, Patric Dickenson, Mildred Clingerman, Elisabeth Sanxay Holding, Robert K. Ottum, Gordon R. Dickson, Henry Kuttner, C.L. Moore

Anthony Boucher with Isaac Asimov (Contributor), Avro Manhattan (Contributor), Arthur Porges (Contributor), Robert Graves (Contributor), Doris Pitkin Buck (Contributor), Judith Merril (Contributor), J.B. Priestley (Contributor)

Anthony Boucher with P. Schuyler Miller (Contributor), Mildred Clingerman (Contributor), Arthur C. Clarke (Contributor), C.M. Kornbluth (Contributor), Robert Abernathy (Contributor), Paul A. Carter (Contributor), Manly Wade Wellman (Contributor), Theodore R. Cogswell (Contributor)

Frederik Pohl, Miriam Allen deFord, Kem Bennett, Anthony Boucher, Charles Beaumont, Ronald Searle, Chad Oliver, James Blish, Isaac Asimov, Rachel Maddux, Winona McClintic, C.S. Lewis, Damon Knight