- Trixie Belden and the Mysterious Code (Trixie Belden, #7)
- Trixie Belden and the Black Jacket Mystery
- Trixie Belden and the Happy Valley Mystery (Trixie Belden, #9)
- Trixie Belden and the Mystery on the Mississippi (Trixie Belden, #15)
- Trixie Belden and the Mystery at Bob-White Cave (Trixie Belden, #11)
- William Arden
- Julie Campbell
- Laura Lee Hope
- Claire Cloninger
- Barbara Davoll
- Jan Morris
- Barbara Taylor
- Penton Overseas Inc.
- Giuliano Bugialli
- David Wallechinsky
- Dan Birlew
- George Ella Lyon
- Zolar
- Nathan Aaseng
- Steven E. Woodworth
- Norma Johnston
- Martin L. Leibowitz
- Sidney Homer
- Michael Koelsch
- Julie H. Campbell