Hilton has a Bachelor of Arts in Philosophy from Newberry College (1970). He served as president of the Alumni Association and as a member of the College's Board of Trustees 2004–06. He originated and was chair of the international John Bachman Symposium, which recognized Newberry's founder during the College's 150th anniversary year. Hilton earned a Master of Arts in Teaching in Biology from Winthrop University (1977), through which he inventoried and studied the ferns of York County, SC. He also has a Master of Science in Ecology and Behavioral Biology from the University of Minnesota (1982), where he conducted a four-year field study of the behavioral ecology of Blue Jays, Cyanocitta cristata.
Today, Bill continues his work as an educator through lectures and workshops. He presents for students and teachers in schools and school districts and for other groups across the country, as a consultant in science curriculum, design and implementation and outdoor learning. Bill is a widely published author on nature and education. He has special interest in teaching science by integrating it with other subject areas. Hilton has studied extensively and trained students, teachers and "citizen scientists" of all ages in Arizona, California, Colorado, Florida, Illinois, Iowa, Kentucky, Maryland, Minnesota, Missouri, New York, North Carolina, Ohio, South Carolina, Pennsylvania, Texas, Virginia, Washington, West Virginia, the District of Columbia and abroad in Australia, Canada, Colombia and Costa Rica.