Ellis Daniel lived through the Great Depression, served in World War II and witnessed the election of the first black president of the United States. In fact, Mr. Daniel turned 101 the day Barack Obama was elected commander in chief. Whenever he was asked about the secret to his longevity, he'd say he had no vices and that he ate right. Four years ago, Mr. Daniel moved from Millen, his hometown in east Georgia, to live in Snellville with his daughter, Dianne Britts. He needed a walker and his eyesight had grown dim, but his mind was "sharp as a tack," Mrs. Britts said.