"The Mad Butcher of Kingsbury Run" was a serial killer who was active in one of these locations, where he gained a more famous nickname by separating his victims at the torso.
As a sociology graduate student, Donald Roy, author of "Banana Time," lived in and wrote an account of one of these locations that was nicknamed "Hollywood on the Tideflats." The name for these locations was coined by Democratic Party publicist Charles Michelson. "The Mad Butcher of Kingsbury Run" was a serial killer who was active in one of these locations, where he gained a more famous nickname by separating his victims at the torso. A former lumberjack named Jesse Jackson appointed himself (*) "mayor" of the largest of these locations, which was in Seattle. New York City's largest example of these locations was built on the drained Central Park reservoir. Douglas MacArthur cleared out one of these locations that was built on the Anacostia Flats by the Bonus Army. The Federal Transient Service was launched in 1933 as part of the New Deal to help the residents of these places. For 10 points, name these Depression-era shantytowns that take their name from the 31st President.
As a sociology graduate student, Donald Roy, author of "Banana Time," lived in and wrote an account of one of these locations that was nicknamed "Hollywood on the Tideflats."
Hoovervilles [prompt on more general answers like "slums" or "shantytowns"]