Mary L. (Denehy) Dockerty, 96, of Peabody, Massachusetts., passed away on October 13, 2017. Loving wife of the late John L. Dockerty. Devoted mother of David J. Dockerty of Belmont, Massachusetts, and Elaine M. Mahoney and her husband Michael of Stoneham, Massachusetts. Devoted grandmother of Mary Kate Petrucci and her husband Brian of Osterville, Massachusetts, and Alison Aldrich and her husband Scott of North Reading, Massachusetts. Also survived by 4 great grandchildren, Hunter, Mackenzie, Charlotte, and Scottie. Funeral Mass on Wednesday, October 18, 2017 at 10:00AM in Brooksby Village Chapel, 100 Brooksby Village Drive, Peabody, Mass. Interment will be held in Massachusetts National Cemetery, Bourne, Massachusetts at 2:00PM. In lieu of flowers, donations in her memory may be made to Boston Catholic Television, P.O. Box 9196, Watertown, Massachusetts. 02471.