What is associated with: 1939 ray bolger oh no?

What is associated with: 1939 movie that included the line pay no attention to that man behind the curtain? What is associated with: 1939 my friends just call me ringo nickname i had as a kid? What is associated with: 1939 oscar winner you are a credit to your craft your race and to your family? What is associated with: 1939 pay no attention to the man behind the curtain? What is associated with: 1939 the cornfield poppies? What is associated with: 1939 the kingdom of swing? What is associated with: 1939 the moors and i wiil never change dont you cathy? What is associated with: 1939 this gospel singer opera soloist?