Barrett, Mary Marguerite (Cronin), longtime Lexington resident, October 15, 2011. Wife of the late Elliott "Bill" Barrett. Mother of Donna Marie Barrett of Exeter, NH. Grandmother of Allison Haddock and Andrew Quintiliani. Marguerite is also survived by 2 great grandchildren, Chloe and Mila. Retired employee of Town of Lexington and Theatre Pharmacy. A Mass of Christian burial will be celebrated Thursday October 20 at St. Brigid Church, 2001 Mass. Ave. Lexington at 10am. Relatives and friends are kindly invited to attend. Visitation Thursday prior to Mass at the Douglass Funeral Home, 51 Worthen Rd. Lexington from 9am to 9:45am. Interment Westview Cemetery, Lexington.