Directed by
| David Howard | ... | (directed by) |
| Armand Schaefer | ... | (directed by) |
Writing Credits
| Sherman L. Lowe | ... | (story by) (as Sherman Lowe) & |
| Al Martin | ... | (story by) |
| Colbert Clark | ... | (screen play by) & |
| John Rathmell | ... | (screen play by) |
Cast (in credits order) verified as complete
| Clyde Beatty | ... | Self (archive footage) | |
| Cecilia Parker | ... | Ruth Robinson (archive footage) | |
| Syd Saylor | ... | Larry Henderson (archive footage) | |
| Warner Richmond | ... | Sharkey (archive footage) | |
| Edward LeSaint | ... | Capt. Robinson (archive footage) | |
| Wheeler Oakman | ... | Kirby (Mary R Mate) (archive footage) | |
| Lew Meehan | ... | Flynn (Mary R Crewman) (archive footage) (as Lou Meehan) | |
| Max Wagner | ... | Slade (Mary R Crewman) (archive footage) | |
 |
Wes Warner | ... | Jackman (Mary R Crewman) (archive footage) |
| Harry Holman | ... | Maitland (archive footage) | |
| Crauford Kent | ... | Prof. Livingston (archive footage) | |
|
|
The Hagenbeck-Wallace Animals | ... | Circus / Jungle Animals (archive footage) |
| Rest of cast listed alphabetically: | |||
| Ernie Adams | ... | Assistant Animal Handler (archive footage) (uncredited) | |
|
|
Jack Carlyle | ... | Mary R's Cook (archive footage) (uncredited) |
| Jim Corey | ... | Steve (archive footage) (uncredited) | |
| George 'Gabby' Hayes | ... | Doctor (archive footage) (uncredited) | |
| Lloyd Ingraham | ... | Dirigible Captain (archive footage) (uncredited) | |
| Mickey Rooney | ... | Boy with Dog (archive footage) (uncredited) | |
| Hal Taliaferro | ... | Sandy (archive footage) (uncredited) | |
| Slim Whitaker | ... | Slim (archive footage) (uncredited) | |
| Lloyd Whitlock | ... | Howard (archive footage) (uncredited) | |
|
|
Charles Williams | ... | Cub Reporter (archive footage) (uncredited) |
|
|
Maston Williams | ... | Thompson (archive footage) (uncredited) |
Produced by
| Nat Levine | ... | producer (uncredited) |
Music by
| Lee Zahler | ... | (uncredited) |
Cinematography by
| William Nobles | ... | (photography) |
| Alvin Wyckoff | ... | (photography) |
Editing by
| Earl Turner | ... | film editor |
Sound Department
| Terry Kellum | ... | sound engineer |
Camera and Electrical Department
| James Higgins | ... | assistant camera (uncredited) |
Music Department
| David Broekman | ... | composer: stock music (uncredited) |
| Hal Chasnoff | ... | musical director (uncredited) |
Additional Crew
| Nat Levine | ... | presenter |
