When the unscrupulous Carlos Manning discovers that an old Spanish land grant recently unearthed will leave a huge section of California real estate to the heirs of Don Quantero, he employs Mel Donovan and his killer henchmen to murder them all. That will leave Manning as the sole heir to millions. However, Delores Quantero tumbles to this plot and enlists the aide of two-fisted reporter, Cliff Roberts to save all her relatives
Unfortunately the movie Daughter of Don Q is not yet available on HBO Max.
| Crew | Helen Thurston | Stunt Double |
| Crew | Ted Mapes | Stunts |
| Crew | Fred Graham | Stunts |
| Crew | Bud Wolfe | Stunts |
| Crew | Ken Terrell | Stunts |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Crew | John Daheim | Stunts |
| Editing | Harold Minter | Editor |
| Camera | Bud Thackery | Director of Photography |
| Production | Ronald Davidson | Associate Producer |
| Crew | Dale Van Sickel | Stunts |
| Sound | Mort Glickman | Music |
| Art | Russell Kimball | Art Direction |
| Art | Fred A. Ritter | Art Direction |
| Directing | Lee Lukather | Assistant Director |
| Editing | Cliff Bell Sr. | Editor |
| Crew | Carey Loftin | Stunts |
| Crew | Tom Steele | Stunts |
| Crew | Joe Yrigoyen | Stunts |
| Crew | Eddie Parker | Stunts |
| Directing | Spencer Gordon Bennet | Director |
| Writing | Basil Dickey | Screenplay |
| Writing | Albert DeMond | Screenplay |
| Writing | Jesse Duffy | Screenplay |
| Writing | Lynn Perkins | Screenplay |
| Directing | Fred C. Brannon | Director |
