We all know the rumors of Elvis being alive and working at Walmart are bunk. But there are other notable and notorious folks who, although not employed by Walmart, may have lived far beyond their official date of death — if they had been granted an official date of death at all. Some disappeared into thin air and were never heard from again. Others allegedly resurfaced years later under assumed names. And one allegedly dead person may have toured the U.S. after his death in the form of a traveling, circus sideshow mummy.