Marx Brothers stage during the middle of a Groucho monologue to see if Groucho would be thrown off. However, to the audience's delight, Groucho merely reacted by commenting, "First time I ever saw a taxi hail a passenger". When Harpo chased the girl back in the other direction, Groucho calmly checked his watch and ad-libbed, "The 9:20's right on time. You can set your watch by the Lehigh Valley." The brothers' vaudeville act had made them stars on Broadway under Chico's management and with Groucho's creative direction—first with the musical revue "I'll Say She Is" (1924–1925) and then with two musical comedies:
Marx Brothers being an actor!" Zeppo replaced him in their final vaudeville years and in the jump to Broadway, and then to Paramount films. During World War I, anti-German sentiments were common, and the family tried to conceal its German origin. Mother Minnie learned that farmers were excluded from the draft rolls, so she purchased a poultry farm near Countryside, Illinois — but the brothers soon found that chicken ranching was not in their blood. During this time, Groucho discontinued his "German" stage personality. By this time, "The Four Marx Brothers" had begun to incorporate their unique style of comedy into their