San Quentin's new warden crusades for reform and for a framed inmate who loves a nurse.
Unfortunately the movie Duffy of San Quentin is not yet available on HBO Max.
| Directing | Walter Doniger | Director |
| Camera | John Alton | Director of Photography |
| Writing | Dean Jennings | Book |
| Sound | Paul Dunlap | Original Music Composer |
| Writing | Clinton T. Duffy | Book |
| Crew | Harry Wilson | Stunts |
| Production | William Stephens | Supervising Producer |
| Crew | Rudy Germane | Stunts |
| Writing | Walter Doniger | Story |
| Art | Leigh Carson | Property Master |
| Editing | Edward Sampson | Editor |
| Crew | Frank Mills | Stunts |
| Costume & Make-Up | Edith Keon | Hairdresser |
| Editing | Chester W. Schaeffer | Supervising Editor |
| Costume & Make-Up | Jerry Bos | Wardrobe Designer |
| Crew | John Indrisano | Stunts |
| Writing | Walter Doniger | Screenplay |
| Crew | George Barrows | Stunts |
| Costume & Make-Up | Curly Batson | Makeup Artist |
| Art | C. Daniel Hall | Art Direction |
| Production | Berman Swarttz | Producer |
| Writing | Berman Swarttz | Story |
| Directing | Ralph Slosser | Assistant Director |
| Directing | Gloria Morgan | Script Supervisor |
| Crew | George Bruggeman | Stunts |
| Production | Walter Doniger | Producer |
| Sound | Frank Webster | Sound |
| Art | Fay Babcock | Set Decoration |
