c) Clara Barton

Clara Barton, a Civil War nurse, later founded the American Red Cross. During the war, Barton was known for her tireless work on the battlefields, providing care to wounded soldiers and earning the nickname “Angel of the Battlefield.” Her experiences led her to advocate for the establishment of an American branch of the International Red Cross, which she achieved in 1881. Barton’s leadership in the Red Cross solidified her legacy as a pioneering humanitarian and advocate for disaster relief and medical care.