WELCOME! To Preston Elementary School Site Index Meet Our Principal Photo-History of PES PES Staff: 2000-2001 Preston, MD, U.S.A. Behavior Standards Grade Level Updates Celebrations! Library/Media Center (To visit a topic, click on button next to it) The Preston Elementary School (PES) Pace Car was drawn by Art Instructor, Mr. Jonathan C. Benson. Revised: 1/9/2001 ...