EVAN HARRIS WALKER, Ph.D. (1935-2006), was a research physicist at the Ballistic Research Laboratories of the U.S. Army Aberdeen Research and Development Center. Dr. Walker was a member of the editorial advisory board of Journal for the Study of Consciousness; he also published many technical papers in physics and astrophysics journal. In 1981, he founded the Walker Cancer Research Institute, a nonprofit organization that funds public awareness of the risk of cancer and research for a cure.