Martin of Billerica formerly of Cambridge, May 16, 2012, Marianne E. Martin, age 71. Devoted mother of Paul Costa of Billerica and the late Sean Martin. Sister of Paul Martin of Wellesley, John Martin of Stoughton, and Joan Castrucci of Beverly. Loving grandmother of Julia Zephyr Martin. Funeral from the John C. Burns & Sons Funeral Home, 305 Broadway, Cambridge, Monday, May 21, at 9:00 a.m. followed by a funeral mass in St. Mary's Church, Cambridge at 10:00 a.m. Relatives and friends invited. Visiting hours, Sunday, May 20 from 2:00-5:00 p.m. Memorial contributions may be made in Marianne's name to the American Lung Association, 460 Totten Pond Road, Suite 400, Waltham, MA 02451. Interment, Cambridge Cemetery.