Groucho Marx undistinguished vaudeville singing group billed as "The Four Nightingales". The brothers Julius, Milton (Gummo Marx) and Arthur (originally Adolph, but Harpo Mark from 1911) and another boy singer, Lou Levy, traveled the U.S. vaudeville circuits to little fanfare. After exhausting their prospects in the East, the family moved to La Grange, Illinois, to play the Midwest. After a particularly dispiriting performance in Nacogdoches, Texas, Julius, Milton, and Arthur began cracking jokes onstage for their own amusement. Much to their surprise, the audience liked them better as comedians than as singers. They modified the then-popular Gus Edwards comedy skit "School Days"
Marx Brothers "Duck Soup", with Lucy dressed up as Harpo. Lucy had worked with the Marxes when she appeared in a supporting role in an earlier Marx Brothers film, "Room Service". Chico once appeared on "I've Got a Secret" dressed up as Harpo; his secret was shown in a caption reading, "I'm pretending to be Harpo Marx (I'm Chico)". The Marx Brothers were spoofed in the second act of the Broadway Review "A Day in Hollywood/A Night in the Ukraine". In the 1989 film "Indiana Jones and the Last Crusade", Professor Henry Jones (Sean Connery) mails his diary to his son Indiana