On September 9, 1900, the residents of Galveston, Texas woke up to find their island in ruins. Entire neighborhoods had vanished overnight. Telegraph, telephone, and electrical lines were destroyed, as were the four bridges connecting Galveston to the mainland. Bloodied men, women, and children stumbled through the streets. And thousands of corpses were strewn amongst the wreckage, victims of what remains America’s deadliest natural disaster. As the survivors reckoned with the challenge of rebuilding their lives, Clara Barton, the 78-year-old founder and president of the American Red Cross, rushed to Galveston to aid with relief.