ג'קי קוגן – הבדלי גרסאות

*''Jackie Coogan: The World's Boy King: A Biography of Hollywood's Legendary Child Star'', Diana Serra Cary, Scarecrow Press, 2003, {{ISBN |0-8108-4650-0}}.

* ''The First Male Stars: Men of the Silent Era'' by David W. Menefee. Albany: Bear Manor Media, 2007, {{ISBN |978-1593-93073-8}}.