Henry Fonda played which future president in a 1939 film?

Carl Van Doren won a 1939 Pulitzer Prize for his biography of which kite-flying Founding Father? Denied permission to sing at Constitution Hall in 1939, Marian Anderson sang at which Washington landmark instead? In which 1939 film does Bette Davis play a young socialite facing a fatal brain tumor? Which founder of psychoanalysis, who died in London in 1939, sought to use the methods of science for therapeutic ends? Which 1939 film features the line "I don't know nothin' 'bout birthin' babies!"? In the 1939 film "The Wizard of Oz," which actress snarls, "I'll get you, my pretty, and your little dog too"? In 1939, the warning "It may become possible to set up a nuclear chain reaction in a large mass of uranium" reached FDR… In the 1939 film "The Wizard of Oz," Dorothy says "I've a feeling we're not in Kansas anymore" to whom?