Born in France to American parents, and raised in Colorado and Montana, United States, Childress went to University of Montana–Missoula to study archaeology, but left college in 1976 at 19 to begin travelling in pursuit of his archaeological interests. After several years in Asia and then Africa, Childress moved in 1983 to Stelle, Illinois, a community founded by New Age writer Richard Kieninger; Childress had been given one of Kieninger's books while touring Africa. Childress chronicled his explorations in the 1970s, 1980s, and 1990s in his "Lost Cities and Ancient Mysteries" series of books.