| Person | Type | Job | Role(s) |
|---|---|---|---|
 A. Earl Hedrick | Crew | Art | Art Direction |
 Bob Herron | Crew | Crew | Stunts |
Charles C. Coleman | Crew | Directing | Second Unit Director |
Donald R. O. Hatswell | Crew | Crew | Technical Advisor |
 Daniel L. Fapp | Crew | Camera | Director of Photography |
 Edith Head | Crew | Costume & Make-Up | Costume Design |
 Edmund H. North | Crew | Writing | Screenplay |
Frank Bracht | Crew | Editing | Editor |
Gene Garvin | Crew | Sound | Sound Recordist |
Gene Merritt | Crew | Sound | Sound Recordist |
Hal Pereira | Crew | Art | Art Direction |
Hans J. Salter | Crew | Sound | Original Music Composer |
John P. Fulton | Crew | Visual Effects | Visual Effects |
Otto Siegel | Crew | Art | Set Decoration |
 Rudolph Maté | Crew | Directing | Director |
 Sam Comer | Crew | Art | Set Decoration |
 Wally Westmore | Crew | Costume & Make-Up | Makeup Supervisor |
William C. Thomas | Crew | Production | Producer |
William H. Pine | Crew | Production | Producer |
William McGarry | Crew | Directing | Assistant Director |
William Williams | Crew | Camera | Second Unit Director of Photography |
 Winston Miller | Crew | Writing | Screenplay |
Della Gould Emmons | Crew | Writing | Novel |
 Alan Reed | Cast | Actor | Charbonneau |
 Argentina Brunetti | Cast | Actress | Shoshone Woman (uncredited) |
 Barbara Hale | Cast | Actress | Julia Hancock |
 Bill Walker | Cast | Actor | Tom (uncredited) |
 Charlton Heston | Cast | Actor | Lt. William Clark |
 Donna Reed | Cast | Actress | Sacajawea |
 Eduardo Noriega | Cast | Actor | Chief Cameahwait |
 Fred MacMurray | Cast | Actor | Cpt. Meriwether Lewis |
 Helen Wallace | Cast | Actress | Mrs. Martha Hancock (uncredited) |
 Herbert Heyes | Cast | Actor | President Thomas Jefferson |
Julia Montoya | Cast | Actress | Crow Woman (uncredited) |
 Larry Pennell | Cast | Actor | Wild Eagle |
 Lester Matthews | Cast | Actor | Mr. Hancock |
 Ralph Moody | Cast | Actor | Chief Le Borgne (uncredited) |
 Walter Reed | Cast | Actor | Helmsman Cruzatte (uncredited) |
 William Demarest | Cast | Actor | Sgt. Gass |
 William Phipps | Cast | Actor | Night Camp Sentry (uncredited) |
| Person | Type | Job | Role(s) |
