Possible Clues:

• Site of 1960s marches
• City famously visited by Martin Luther King Jr.
• 2014 civil rights drama set in Alabama
• MLK vote-drive city
• Where M.L.K. led a voter drive
• Alabama town in '60s headlines
• Bloody Sunday march site
• 1965 protest site
• Sister of Patty and Marge
• Chain smoker on 'The Simpsons'