Lieutenant Jack London (no kin to the famous author), of the United States Navy, was seen in a 1915 Thanhouser film, parts of which were taken aboard a Navy ship.
Lieutenant Jack London
A Thanhouser Company player, credited on one Thanhouser film. No print of it is known to survive.
Biography
Q. David Bowers, Thanhouser Films: An Encyclopedia and History. This is the entry in full.
Filmography
Thanhouser films
This has no online copy. Its page says what is known about where a print might be.
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