50 years ago, on June 7, 1971, in her capacity as the National Coordinator for the National League of POW/MIA Families, Evelyn Grubb (1931-2005) petitioned the United Nations to pressure North Vietnam to disclose information truthful information about the status of all POW/MIA. Evelyn's historic petition made reference to two instruments of international law: The 3d Geneva Convention and the Universal Declaration of Human Rights. In this show, we provide a introductory background of these instruments and discuss how Evelyn Grubb used them in her petition.