- Silent Films! the PerformersPaul Rothwell-Smith · Nottingham: Cordelia Books, 2011 · ISBN: 9781907540325
- Moving Picture World (US)"Gale Henry to Make Twelve Two-Reel Films for Special"July 31, 1920 · pg. 582
- Moving Picture World (US)"Comedienne Gale Henry Is No Longer with Bull's Eye"February 14, 1920 · pg. 1055
- Moving Picture World (US)"Gale Henry to Start Work on Five-Reel Comedy Soon"January 3, 1920 · pg. 142
- Moving Picture World (US)"Gale Henry Transfers to L-Ko Comedies"December 1, 1917 · pg. 1354
- The American Magazine (US)"A Dog's Life in Hollywood"August 1938 · pg. 16-17, 61-62 · by: J. B. Griswold
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