The son of poet Sylvia Plath committed suicide last week in Alaska, 46 years after his mother died at her own hand. Nicholas Hughes, whose father was poet Ted Hughes, was a professor of ocean sciences. “He had been battling depression for some time,” said his sister. Six years after Plath gassed herself to death, Ted Hughes’ mistress also killed herself and her daughter with Hughes by flooding their home with gas fumes. Nicholas Hughes committed suicide by hanging himself.