Who was the narrator in the movie A Christmas Story?

Probably late 1939 or 1940. The Wizard of Oz characters are present in the Christmas parade and Halle's department store (THE WIZARD OF OZ movie was released in 1939), and the Little Orphan Annie decoder that Ralphie gets in the mail is the 1940 model (which was mailed out by Ovaltine starting in late 1939).