The Messenger Boy is a musical comedy in two acts by James T. Tanner and Alfred Murray, lyrics by Adrian Ross and Percy Greenbank, with music by Ivan Caryll and Lionel Monckton, with additional numbers by Paul Rubens. The story concerns a rascally financier who tries to discredit a rival in love; it takes place in London, Cairo and Paris.

Daly's Theatre was a Broadway theatre at 1221 Broadway and 30th Street. It was built in 1867 and opened that year as Banvard's Museum but changed its name the following year to Wood's Museum and Metropolitan. In 1876 it became the Broadway Theatre, and finally was named Daly's Theatre in 1879 when it was acquired by Augustin Daly. After 1899, it was operated by the Shubert family. The building was demolished in 1920, after serving as a burlesque theatre and cinema.