The founder of the American Red Cross in the 19th century to provide humanitarian aid was Clara Barton. Starting the organization in 1881, Barton dedicated her efforts to help those affected by disasters, including wars and epidemics. She is often referred to as the "Angel of the Battlefield" for her work during the American Civil War, where she provided critical medical assistance. Under her leadership, the Red Cross grew into a vital organization for disaster relief, advocating for international humanitarian standards and assistance in times of crisis.