Nurses hold a special form of attachment for people. History cites many who have attained renown because of their outstanding individual dedication and endeavors. Famous nurses include the likes of Clara Maas (1876-1901), the Army nurse who served with William Gorgas in Yellow Fever studies, and allowed herself to be bitten by mosquitoes and died a martyr to medical science. Dorthea Dix (1802-1887), who taught Sunday School class at East Cambridge Corrections and became appalled at the conditions. She devoted a lifetime to upgrading poorhouses, asylums and prisons. During the Civil War she was superintendent of women nurses. Clara Barton (1821-1912), who was appalled at conditions during the Civil War and without official sanction, aided casualties in Virginia becoming known as the "Angel of the Battlefield" and being appointed Supt. of Nurses with the Army of the James. She volunteered in Europe in the Franco-Prussian War and in 1881 founded the American Association of the Red Cross.