 Although never mentioned, the main characters of the "Rhapsody in  Blue" segment all have names. The construction worker is named Duke.  The man who needs a job is, appropriately, named Jobless Joe. The  little girl is named Rachel, after Eric and Susan Goldbergs  youngest daughter. The portly fellow is named John, sometimes  referred to by the animators as "Flying John," and he is named after  animation historian John Culhane. Duke and Jobless Joe are not named  after particular individuals.