Question: Gustaf Tenggren was the chief illustrator for what 1937 American animated musical fantasy film produced by Walt Disney Productions?
Context: The Sword in the Stone is a 1963 American animated musical fantasy comedy film produced by Walt Disney and released by Buena Vista Distribution.  The 18th Disney animated feature film, it was the final Disney animated film to be released before Walt Disney's death.  The songs in the film were written and composed by the Sherman Brothers, who later wrote music for other Disney films like "Mary Poppins" (1964), "The Jungle Book" (1967), "The Aristocats" (1970), and "Bedknobs and Broomsticks" (1971). Cinderella is a 1950 American animated musical fantasy film produced by Walt Disney and originally released by RKO Radio Pictures.  Based on the fairy tale "Cinderella" by Charles Perrault, it is the twelfth Disney animated feature film.  Directing credits go to Clyde Geronimi, Hamilton Luske, and Wilfred Jackson.  Songs were written by Mack David, Jerry Livingston, and Al Hoffman.  Songs in the film include "Cinderella", "A Dream is a Wish Your Heart Makes", "Sing Sweet Nightingale", "The Work Song", "Bibbidi-Bobbidi-Boo", and "So This is Love".  It features the voices of Ilene Woods, Eleanor Audley, Verna Felton, Rhoda Williams, James MacDonald, Luis van Rooten, Don Barclay, Mike Douglas, and Lucille Bliss. Hawaiian Holiday is a 1937 American animated short film produced by Walt Disney Productions and released by RKO Radio Pictures.  The cartoon stars an ensemble cast of Mickey Mouse, Minnie Mouse, Pluto, Donald Duck, and Goofy while vacationing in Hawaii (then a territory of the United States).  The film was directed by Ben Sharpsteen, produced by John Sutherland and features the voices of Walt Disney as Mickey, Marcellite Garner as Minnie, Clarence Nash as Donald, and Pinto Colvig as Goofy and Pluto.  It was Disney's first film to be released by RKO, ending a five-year distributing partnership with United Artists. The Little Mermaid is a 1989 American animated musical fantasy film produced by Walt Disney Feature Animation and released by Walt Disney Pictures.  Based on the Danish fairy tale of the same name by Hans Christian Andersen, "The Little Mermaid" tells the story of a beautiful mermaid princess who dreams of becoming human.  Written, produced, and directed by Ron Clements and John Musker, with music by Alan Menken and Howard Ashman (who also served as a co-producer), the film features the voices of Jodi Benson, Christopher Daniel Barnes, Pat Carroll, Samuel E. Wright, Jason Marin, Kenneth Mars, Buddy Hackett, and René Auberjonois. Pinocchio is a 1940 American animated musical fantasy film produced by Walt Disney Productions and based on the Italian children's novel "The Adventures of Pinocchio" by Carlo Collodi.  It was the second animated feature film produced by Disney, made after the success of "Snow White and the Seven Dwarfs" (1937). Clock Cleaners is a 1937 American animated short film produced by Walt Disney Productions and released by RKO Radio Pictures.  The cartoon follows Mickey Mouse, Donald Duck, and Goofy working as janitors in a tall clock tower.  The film was directed by Ben Sharpsteen and features original music by Paul Smith and Oliver Wallace.  The voice cast includes Walt Disney as Mickey, Clarence Nash as Donald, and Pinto Colvig as Goofy. Gustaf Adolf Tenggren (November 3, 1896 – April 9, 1970) was a Swedish-American illustrator.  He is known for his Arthur Rackham-influenced fairy-tale style and use of silhouetted figures with caricatured faces.  Tenggren was a chief illustrator for The Walt Disney Company in the late 1930s, in what has been called the Golden Age of American animation, when animated feature films such as "Snow White and the Seven Dwarfs", "Fantasia", "Bambi" and "Pinocchio" were produced. Snow White and the Seven Dwarfs is a 1937 American animated musical fantasy film produced by Walt Disney Productions and originally released by RKO Radio Pictures.  Based on the German fairy tale by the Brothers Grimm, it is the first full-length cel animated feature film and the earliest Disney animated feature film.  The story was adapted by storyboard artists Dorothy Ann Blank, Richard Creedon, Merrill De Maris, Otto Englander, Earl Hurd, Dick Rickard, Ted Sears and Webb Smith.  David Hand was the supervising director, while William Cottrell, Wilfred Jackson, Larry Morey, Perce Pearce, and Ben Sharpsteen directed the film's individual sequences. Hercules is a 1997 American animated musical fantasy comedy film produced by Walt Disney Feature Animation for Walt Disney Pictures.  The 35th Disney animated feature film, the film was directed by Ron Clements and John Musker.  The film is loosely based on the legendary hero Heracles (known in the film by his Roman name, Hercules), the son of Zeus, in Greek mythology.  The film also featured the first positive portrayal of African American women in a Disney animated film. Sleeping Beauty is a 1959 American animated musical fantasy film produced by Walt Disney based on "The Sleeping Beauty" by Charles Perrault.  The 16th Disney animated feature film, it was released to theaters on January 29, 1959, by Buena Vista Distribution.  This was the last Disney adaptation of a fairy tale for some years because of its initial mixed critical reception and underperformance at the box office; the studio did not return to the genre until 30 years later, after Walt Disney died in 1966, with the release of "The Little Mermaid" (1989).
Answer: Snow White and the Seven Dwarfs