Clarissa Harlowe "Clara" Barton (1821-1912), was a pioneer nurse who founded the American Red Cross. She also worked as a teacher, patent clerk, and humanitarian. At a time when relatively few women worked outside the home, Barton built a career helping others. She was never married but had a relationship with John J. Elwell. During the end of the American Civil War, Barton worked at a hospital she made helping the people at the Anderson prison camp where at least 13,000 people died.