- Variety (US)"Maurice Costello"November 1, 1950 · pg. 63:1
- New York Times (US)"Maurice Costello Dies in Hollywood; Stage, Film Star, 73, Matinee Idol Early in the Century, Is Victim of Heart Ailment"October 30, 1950 · pg. 27:1
- Motion Picture Classic (US)"The Tragedy of Costello; The Past Creeps Up to Haunt the Favourite of Yesteryear, But He Still Carries On with a Smile"January 1928 · pg. 18-19, 78 · by: Ann Cummings
- Motion Picture Classic (US)"Them Were the Happy Days; The First of a Series of Articles About the Pioneer Days of the Motion Picture--Before It Became a Highly Specialized Industry"October 1926 · pg. 18-19, 65, 86 · by: Bert Ennis
- Moving Picture World (US)"Costello as Villain"April 14, 1923 · pg. 773
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