Barry, John M "Jackie" of Lexington, January 20. Son of the late John M Barry Sr. and Helen (Healey) Barry. Brother of the late Robert Barry. Earned Undergraduate Degree from Tufts University. Earned two Masters Degrees from Massachusetts Institute of Technology. Lieutenant in the Navy aboard the USS Essex CV-6. Retired mechanical engineer of Draper Laboratory. Funeral from the Douglass Funeral Home, 51 Worthen Rd., LEXINGTON, Monday, Jan. 25 at 9am followed by a Mass of Christian Burial at St. Brigid Church, Lexington at 10am. Relatives and friends are kindly invited to attend. Visiting hours Sunday 3-6 PM. Donations in his memory may be made to Catholic Charities of the Archdiocese of Boston, 51 Sleeper Street, Boston, MA 02210.