Devlin, Mary G. of Marshfield, passed away on November 6 at the age of 77. Beloved wife of the late Joseph F. Devlin. Loving mother of Joseph F. Devlin III and his wife Patricia of Hull. Loving grandmother of Alanna, Riley and Keeley. Dear sister of Susan Greenwood and the late James Greenwood. Daughter of the late Leland J. and Edna (Donnelly) Greenwood. Mary was born in Moriah, NY. She graduated from Port Henry High School and received her Bachelor's degree from Boston College. Mary moved to Marshfield in 1964. Mary worked as a self-employed social worker. A Memorial Mass will be held in St. Christine's Church, 1295 Main St., Rte. 3A in Marshfield on Friday, November 14, 2014 at 10:00 a.m. Contributions in Mary's memory may be made to Dana Farber Cancer Institute, P.O. Box 849168, Boston, MA 02284-9168. For online guestbook please visit our website, macdonaldfuneralhome.com