MARY MARGARET FOUNTAIN - Passed away on Sunday, November 11, 2018. She is survived by a host of family and friends. Visitation Tuesday, November 27, 2018 from 10:00 a.m. until time of Mass of Christian Burial 11:00 a.m. at Mount Calvary Catholic Church, 6700 Marlboro Pike, Forestville, MD 20747. Interment Heritage Memorial Cemetery, 13472 Poplar Hill Road, Waldorf, MD 20601. Services by HENRY S. WASHINGTON & SONS CO., INC.