Directed by Canadian-American filmmaker Ted Eshbaugh, this "Wizard of Oz" cartoon from 1933 predated the classic Hollywood movie by six years. From Wikipedia:
The story is credited to "Col. Frank Baum." Frank Joslyn Baum, a Lieutenant Colonel in the United States Army and eldest son of writer L. Frank Baum, was involved in the film's production, and may have had an involvement in the film's script, which is loosely inspired by the elder Baum's 1900 novel, The Wonderful Wizard of Oz. It runs approximately eight and a half minutes and is nearly wordless, working mainly with arrangements of classical music created by Carl W. Stalling.
The film was originally made in Technicolor, but because it was made without proper licensing from the Technicolor Corporation (which limited use of its 3-strip process to Disney), it never received a theatrical release.