CASEY, Margaret C. "Peggy" (Breen). Of Brookline passed peacefully on October 19, 2021. Beloved wife of the late Francis M. Casey. Loving mother of Diane MacDonald and her husband John of Durham, NC., Kevin Casey and his late wife Erin, Francis Casey Jr., and his wife Sheryl all of Freedom, NH., Christopher Casey and his wife Dawn of No. Reading and the late Kathleen Casey. Dear sister of Lawrence Breen, Helen Bennett, and the late Mary Silverstrone, John "Jack", Robert "Bobby", Daniel "Danny" and Joseph Breen. Also survived by her six grandchildren, two great grandchildren and many nieces and nephews. Visitation will be held in the Bell-O'Dea Funeral Home, 376 Washington St., Brookline on Saturday morning from 9:30 - 10:30 followed by a Funeral Mass in St. Mary of the Assumption Church at 11:00. Relatives and friends are kindly invited. Interment Holyhood Cemetery