Clyde Kluckhohn (1905–1960) was Professor of Anthropology at Harvard University and Curator of Southwestern American Ethnology at Harvard’s Peabody Museum. He was in almost continuous contact with the Navaho Indians beginning in 1923. In 1942 he became an expert consultant to the United States Office of Indian Affairs. Professor Kluckholn authored several books, among them Beyond the Rainbow and Navaho Witchcraft.