diStefano, Mary L., in Winchester, formerly of Ipswich, MA., Aug. 22, 2010, at age 92. Beloved sister of Elvira DelGreco. A Memorial Mass will be held in St. Mary’s Church, 155 Washington St., Winchester, on Tuesday, August 31st at 10:00 AM. Relatives and friends kindly invited. Donations in her memory may be made to the Karen Adelizzi Scholarship Fund c/o Stoneham High School, 149 Franklin St., Stoneham, MA 02180. Arrangements by Costello Funeral Home of Winchester.