Mary E. Harding, 89, a resident of Westford, previously of Littleton, died Thursday, June 26. She was the wife of the late Matthew J. Harding. She was born on December 27, 1924, daughter of the late Arthur P. Sullivan and Elizabeth C. Peterson and the sister of the late Josephine Burns, Elizabeth Peterson, and Arthur Sullivan. Before retiring Mrs. Harding worked as a bookkeeper at MCI Concord. She is survived by three daughters and one son, Mary and Donald Stevens of Sun Lakes, Arizona, Roberta MacDonald of Chandler, Arizona, Theresa and William Tracy of Chelmsford, and Matthew and Tricia Harding of Westford, four grandchildren and one great grandchild. Relatives and friends may call at Badger Funeral Home, Littleton, MA on Tuesday, July 1 from 4:00 to 7:00 p.m., with a funeral Mass at 9:00 a.m. on Wednesday, July 2, at St. Anne's Church, Littleton, MA. In lieu of flowers, memorial donations may be made in her name to the Alzheimer's Foundation of America