The Heir to the Hoorah is a 1904 play written by Paul Armstrong, which was later determined in court to have been based on "The Transmogrification of Dan" by Henry J. W. Dam.

The story concerns the western owner of a gold mine called the Hoorah, his eastern-born wife, and their path to reconciliation.

It also marked the debut of T. Tamamoto, a Japan-born actor who employed jiu-jitsu during the play's action and would go on to appear in a dozen more Broadway productions.

Joe finds his household now includes a new-born babe, but is incensed to learn that a fellow in a silk hat was seen calling on his home.

[2] By January 1905 it was renamed to The Heir to the Hoorah,[3] This was the last production Kirk La Shelle would ever do; he died six weeks after the premiere.

Among the better-known plays he produced were Arizona, Checkers, The Bonnie Brier Bush, The Virginian, and The Education of Mr.

[4] La Shelle showed foresight in booking the Hudson Theatre, for it was the only "legitimate" venue to have a newly installed cooling plant.

[11] The critic for The Scranton Republican noted the immediate success of the play with the audience, who demanded curtain speeches from both Armstrong and La Shelle after the second act.

[7] After the one performance in Scranton, the production moved to the Walnut Street Theatre in Philadelphia for a two-week engagement starting March 20, 1905.

[12] They praised the acting of the principal players and T. Tamamoto, who played "to perfection, and when he applied the jiu-jitsu to a portly butler the house went wild".

[15] The New York Times reviewer acknowledged the show was a popular success despite its weaknesses: "Crudeness of plot and device, of situation and repartee, characterize every scene of the play.

[16] The Sun critic praised the acting, and said of T. Tamamoto's valet character "he could have had a hundred offers of employment last night from the audience, even before he jiu-jitsued the British butler".

[17] After two weeks The Heir to the Hoorah was announced as a success and confirmed to play out the season at the Hudson Theatre.

[23] In February 1906 the writer Henry J. W. Dam filed a lawsuit claiming The Heir to the Hoorah had dramatised his short story "The Transmogrification of Dan" without permission.