Jack Williamson
Ray Cummings, Charles Willard Diffin, Jack Williamson, Harl Vincent, F. V. W. Mason
Edward S. Ellis
Terry Carr
Jules Verne
Ray Cummings
Captain S. P. Meek, Charles Willard Diffin, Harry Bates, Desmond Winter Hall, F. V. W. Mason, Anthony Gilmore
Garrett P. Serviss
George Griffith
E. E. Smith