Born in 1940

A selection from Wikipedia's '1940 in the United States'. Not a complete list.

• February 7 – RKO release Walt Disney's second full-length animated film, Pinocchio.
• February 10 – Tom and Jerry make their debut in Puss Gets the Boot.
• May 15 – The very first McDonald's restaurant opens in San Bernardino, California.
• May 29 – The Vought XF4U-1, prototype of the F4U Corsair U.S. fighter later used in WWII, makes its first flight.
• June 22 – The first Dairy Queen soft-serve ice cream parlor opens in Edina, Minnesota.
• July 27 – Bugs Bunny makes his debut in the Oscar-nominated cartoon short, A Wild Hare.
• November 5 – 1940 United States presidential election: Democratic incumbent Franklin D. Roosevelt defeats Republican challenger Wendell Willkie and becomes the nation's first and only third-term president.
• November 13 – Walt Disney's third feature film, Fantasia, is released. It is the first box office failure for Disney, though it recoups its cost years later and becomes one of the most highly regarded of Disney's films.

Source: Wikipedia (CC BY-SA 4.0)