The Girl Engineer
A crooked mine owner attempts to hijack his rival's shipment of ore, but Helen foils his plot by jumping onto the engine and pulling the throttle wide open, eventually exposing the unscrupulous villain.
- Year: 1915
- Country: United States of America
- Genre: Thriller
- Studio: Kalem Company
- Keyword: lost film
- Director: J.P. McGowan
- Cast: Helen Holmes, Leo D. Maloney, George A. Williams, Rex Downs, N.Z. Wood