COSTIGAN, Marilyn L. (Doherty), of Winthrop, August 30, 2018. Beloved wife of the late Bernard J. Costigan. Devoted mother of Bernard J. Costigan Jr. and his wife Mary of Winthrop, John F. Costigan and his wife Judy of Peabody, Kathy M. Garten and her husband Dave of Ft. Meyers, FL, Thomas C. Costigan and his wife Eileen of Allston, James R. Costigan and his wife Maura of Tewksbury and the late Rosemary Costigan. Adored grandmother of 9 and great-grandmother of 8. Cherished daughter of the late Charles and Marion (Cousins) Doherty. Dear sister of Jean Camacho of Winthrop and the late Charles and Robert Doherty and Barbara Iannelli. Funeral from the Maurice W. Kirby Funeral Home 210 Winthrop St. WINTHROP, on Weds, September 5, at 9am. A Funeral Mass will follow in St. John the Evangelist Church-Winthrop at 10am. Relatives and friends are invited. Interment will be in Winthrop Cemetery. Visiting hours will be held in the funeral home on Tues, from 4-8pm. In lieu of flowers, donations in her memory can be made to St. John the Evangelist Church 320 Winthrop St. Winthrop, MA 02152. Marilyn retired after 21 years from the U.S. State Department, where she was employed as a passport examiner. For guestbook and directions, please visit: www.mauricekirbyfh.com.