Brennan of Billerica formerly of Waltham, December 25, 2009, Lorraine A. (Guarino) Brennan, age 70. Beloved wife of the late Frederick J. Brennan. Devoted mother of Deborah Ranucci and her husband William and Paul Brennan and his wife Patrice, all of Billerica. Sister of Virginia Forcier of Medford, Lucy Billingsley of VA, and Rita Madden of Wareham. Loving grandmother of Billy J. Ranucci, Richard Ranucci, Mike Ranucci, Matt Ranucci, Tiffany Brennan, Stephen Brennan, and the late Glen Ranucci. Also survived by her great granddaughter Lilly Ranucci. A memorial mass will be held in St. Theresa's Church, Billerica, on Thursday, December 31, at 9:00 a.m. Relatives & friends invited. Memorial contributions may be made in Lorraine's name to American Diabetes Association, 330 Congress St., Boston, MA 02210. Interment, Fox Hill Cemetery.