In which 1939 film does the heroine vow, "As God is my witness, I'll never be hungry again"?

1938's "Under Western Stars" helped launch the career of which singing cowboy? In 1939–1940, the USSR fought which country in the Winter War? Bette Davis played which monarch in 1939 and 1955 films? Complete the title of Thomas Wolfe's 1939 novel: "___ and the Rock". Which 1939 novel is dedicated in part "To Tom, who lived it"? 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?