- George O. Smith
- Murray Leinster
- Alan Edward Nourse
- George O. Smith
- George O. Smith
- Edmond Hamilton
- Rog Phillips
- Fox B. Holden
- Edmond Hamilton
- Robert Silverberg
- Robert Emmett McDowell
- Bryce Walton
- Charles L. Harness
- Larry Sternig
- Frederik Pohl
- Raymond Z. Gallun
- R. R. Winterbotham
- Keith Laumer
- Kris Neville
- Christopher Anvil
- Murray Leinster
- H. B. Fyfe
- Murray Leinster
- Clifford D. Simak
- Rog Phillips
- Robert W. Lowndes
- Robert Moore Williams
- Alfred Coppel
- Andre Norton

























