In 1932, which "army" of World War I veterans marched on Washington demanding early payment of their service bonuses?

Complete the title of the 1931 Buster Keaton film: "Sidewalks of ___". Which Spanish artist painted "The Persistence of Memory" in 1931? Which 102-story building was officially dedicated in New York City in 1931? The 1931 Broadway revue "The Band Wagon" was the last show in which which brother-and-sister dance team shared the spot… At the 1932 AAU national track and field meet, which athlete won the team championship single-handedly for her company'… Which author won the 1932 Nobel Prize in Literature "for his distinguished art of narration which takes its highest for… Which 1932 dystopian novel includes the line "In the four thousand rooms of the Centre the four thousand electric clock… Which 1932 Best Picture winner, set in a Berlin hotel, starred Greta Garbo?