Clarissa Harlowe 'Clara' Barton began her nursing career as a military nurse during the American Civil War. She cared deeply for her 'boys' and worked hard to coordinate the delivery of vital supplies during the conflict, as well as tending to the sick and injured. Her tireless efforts during the war (as well as after it, when she was responsible for organising vast efforts to search for missing soldiers) rightfully earned her the nickname the 'Angel of the Battlefield.'

However, what Clara is most remembered for is her founding of the American Red Cross. Having witnessed the International Red Cross's work during a trip to Geneva, Clara founded the American branch and acted as its president from 1881-1904. After she stepped down from her presidency of the Red Cross, Clara went on to found the National First Aid Society. While the organisation was short lived, it provided first aid training and developed first aid kits; services that were later incorporated into the American Red Cross itself.

Clara was a nurse with a truly humanitarian spirit and a widespread desire to help people. Today the American Red Cross provides disaster relief, support for military families, and healthcare services to those in need around the world.

tl;dr – Former military nurse whose humanitarian organisation emergency relief and healthcare to this day.