HARDY John J. age 92 of Cambridge formerly of Medford, Oct. 13, 2013. A graveside service will be held at 10 o’clock on Thursday, Oct. 17th. in Oak Grove Cemetery, Playstead Rd. Medford. Late Educator of the Medford Public Schools. Graduate of Harvard University and Boston University. Lieutnant Colonel of the U.S. Navy and Air Force.