The collection includes approximately forty letters written by Henry Arthur Jones to others involved in the theatre, such as actor-manager George Alexander (1 letter), dramatist William Leonard Courtney (5), playwright Harrison Grey Fiske (1), actress Elizabeth Robins (1), playwright Augustus Thomas (3), dramatic critic Arthur Bingham Walkley (1), critic and playwright Malcolm Watson (1), and dramatist Freeman Wills (1). Also found in the collection is the typescript of "Cock o' the Walk," a five-act play by Jones, the manuscript of an article by Jones on motion pictures and a biographical study of Henry Irving.