Costa, Margaret L. (Flynn) of Cambridge, April 12th, 2016 at age 81. Devoted mother of Joseph Costa and his significant other Beth Holleran, John Costa and his significant other Michelle Flynn, Paul Costa and his significant other Carol Duffy and the late James Costa. Cherished grandmother of Shaina, Derek, Jessica and Steven Costa. Adored great-grandmother of Brandon Costa. Beloved sister of Helen Ellison, Ann Bray, Alice Fitts, Joan Reid and the late Mary Dell’Olilo, Francis, John, William and Paul Flynn. Also survived by many nieces, nephews, and other loving relatives and friends. Visiting hours at the Jeanne Jugan (Little Sisters of the Poor), 186 Highland Ave., Somerville, MA 02143 on Saturday April 16th, 2016 from 9:00 am to 11:00 am with a service to follow. Arrangements by Rogers Funeral Home, Cambridge.