| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Pony Express | 6302457025 (6302457025) | 1998 | Ray Rennahan · Eda Warren · Nat Holt · Frank Gruber |
| Springfield Rifle | 6303072755 (6303072755) | 1994 | Edwin B. DuPar · Robert L. Swanson · Louis F. Edelman · Frank Davis · Sloan Nibley |
C.M. · C. W. · C. Warren · Charles M. · Charles W. · Charles Warren