Custodio, Margarita "Maggie" of Lexington, formerly of Boston and Paterson, NJ, November 28, 2015. Wife of John T. O'Neill. Daughter of Felicita (Camacho) Custodio and Manuel A. Custodio of Kissimmee, FL. Sister of Angel Manuel Custodio and his wife Lillian of Orlando, FL, Javier Custodio and his wife Lori of Totowa, NJ, and Roberto Custodio and his wife Ruth of Kissimmee, FL. Daughter-in-law of Helena "Eileen" O'Neill of Medford and the late Daniel O'Neill. Sister-in-law of Mary Kinler and her husband Donald of Germantown, MD, Dennis O'Neill and his wife Laura of Reading, and Daniel O'Neill and his wife Deborah of Stoneham. Maggie is also survived by many nieces and nephews. COO of Mount Auburn Cambridge Independent Practice Association. A Funeral Mass will be celebrated Wednesday December 2 at Sacred Heart Church, 21 Follen Rd. Lexington at 10am. Relatives and friends are kindly invited to attend. Visiting hours Tuesday at Sacred Heart Church from 4pm to 8pm. Donations in her memory may be made to the National Ovarian Cancer Coalition, 347 Mass. Ave. Arlington, MA 02474 or at www.ovarian.org. Interment Westview Cemetery, Lexington.