Davis of Billerica, September 23, 2011, Catherine J. (Moore) Davis, age 77. Beloved wife of the late Irving J. Davis. Devoted mother of James J. Davis and his wife Elaine of Manchester, NH, and Mary Guanci and her husband Peter of Tewksbury. Sister of Helen Cryan of Laconia, NH, Shirley Denno of Bellows Falls, VT, and the late John and his wife Virginia Moore and Margaret Welch. Loving grandmother of Justin and Derek Guanci of Tewksbury. Also survived by nieces, nephews, and great nieces and nephews. Funeral services will be held in the Burns Funeral Home, 354 Boston Rd. (Rt. 3A), Billerica, Tuesday, September 27, at 11:00 a.m. Relatives & friends invited. Visiting hours prior to service from 9:00-11:00 a.m. Memorial contributions may be made in Catherine's name to St. Jude Children's Research Hospital, 501 St. Jude Place, Memphis TN, 38105. Interment, Fox Hill Cemetery.