Mr. Clifton is a very experienced physical therapist clinician, professor, researcher, author and consultant. He joined CUSD in 2019, returning to Delco after nearly eight-years in San Diego. He is the author of a definitive textbook; Physical Rehabilitation's Role in Disability Management, 2005, Phila: Elsevier, in addition to scores of journal articles and book chapters. He has served as an Adjunct Professor of Physical Therapy at three area universities: Widener, Arcadia and Hahnemann, where he taught Masters and Doctoral level students. Mr. Clifton established the nation's first Physical Therapy Peer Review company, provided over 300 professional presentations nationwide and served as the Vice-Chair/Trustee of the Foundation for Physical Therapy Research. He received the National Service Award from the American Physical Therapy Association and served as faculty for several APTA educational programs. Mr. Clifton received his physical therapy education at the University of Pennsylvania, Phila. and his B.S. in Education from Indiana University of Pennsylvania, Indiana, Pa. In addition to his service as a physical therapist, David was a Pa. certified teacher K-12. He has four children and eight grandchildren. He is a former wrestling coach at Penncrest H.S., coached at Media Little League and was the first head coach of the Media Youth Lions wrestling club.