Red Cross Join The Greatest MotherOriginal vintage World War One medical recruitment poster Join! The Greatest Mother featuring a Red Cross nurse in uniform kneeling down and looking over a globe of the world against a blue starry sky shaded background, the text above with a Red Cross logo and below. The American Red Cross ARC was formed in 1881 as non profit humanitarian organization founded by the American Civil War nurse Clara Barton (Clarissa Harlowe Barton; 1821 1912). Good