An 84-year-old Florida woman who bought her Powerball ticket after another customer let her get ahead in line came forward Wednesday to claim the biggest undivided lottery jackpot in history: $590 million. Gloria C. MacKenzie, the sole winning ticket in the May 18 drawing was bought, took her prize in a lump sum of just over $370 million. After federal taxes, she is taking home about $270 million, lottery officials said. Wow! Would you come forward? Face Book here.