Annette Funicello, the most popular Mouseketeer on “The Mickey Mouse Club,” who matured to a successful career in records and ’60s beach party movies but struggled with illness in middle age and after, died Monday, The Walt Disney Co. said. She was 70. She died peacefully at Mercy Southwest Hospital in Bakersfield, Calif., of complications from multiple sclerosis, the company said. Funicello stunned fans and friends in 1992 with the announcement about her ailment. Yet she was cheerful and upbeat, grappling with the disease with a courage that contrasted with her lightweight teen image of old. The pretty, dark-haired Funicello...