Two young drifters guide a Mormon wagon train to the San Juan Valley and encounter cutthroats, Navajo, geography, and moral challenges on the journey.
| Directing | John Ford | Director |
| Sound | Richard Hageman | Music |
| Camera | Bert Glennon | Director of Photography |
| Writing | Patrick Ford | Screenplay |
| Writing | Frank S. Nugent | Screenplay |
| Camera | Archie Stout | Second Unit Director of Photography |
| Art | Joseph Kish | Set Decoration |
| Editing | Jack Murray | Editor |
| Costume & Make-Up | Don L. Cash | Makeup Artist |
| Writing | John Ford | Story |
| Art | James Basevi | Art Direction |
| Art | Jack Colconda | Property Master |
| Editing | Barbara Ford | Editor |
| Production | Merian C. Cooper | Executive Producer |
| Production | John Ford | Executive Producer |
| Production | Lowell J. Farrell | Associate Producer |
| Costume & Make-Up | Anna Malin | Hairstylist |
| Directing | Wingate Smith | Assistant Director |
| Directing | Cliff Lyons | Second Unit Director |
| Sound | Clem Portman | Sound |
| Sound | Frank Webster | Sound |
| Crew | Jack Caffee | Special Effects |
| Visual Effects | Ray Kellogg | Visual Effects |
| Crew | Chuck Hayward | Stunts |
| Crew | Bryan 'Slim' Hightower | Stunts |
| Crew | Billy Jones | Stunts |
| Crew | Eddie Juaregui | Stunts |
| Crew | Fred Kennedy | Stunts |
| Crew | Cliff Lyons | Stunts |
| Crew | Frank McGrath | Stunts |
| Crew | Post Park | Stunts |
| Crew | Gil Perkins | Stunts |
| Crew | Ray Thomas | Stunts |
