Box 38 contains work by Elon Clark, Robert L. (Bob) Blake, and other unsigned works. Duke Halo Positioner materials in Box 39 include text and illustration to support the development of the Duke Halo Positioner. Work by William T. Hardaker, Jr., William O. Reed, David W. Vaughn, and Frank W. Clippinger. Facial features illustration speech materials contains materials pertaining to a speech given before Surgery Outpatient Clinic staff, basement of Baker House.