In 2006, after serving 19 years and 11 months in a Texas prison for a rape he didn't commit, Billy Smith was exonerated of all charges and set free. He was 54. Despite clearing his name, he's never been able to find a job.

"Who wants to hire someone who's 61 years old and who's an ex-convict?" Smith said. "Even though I'm exonerated, people don't...