Shea of Chelmsford, formerly of Billerica, Pamela “Pam” F. (Ridings) Shea, age 56. Beloved wife of John P. Shea. Devoted mother of John Shea and Adam Shea both of Billerica. Sister of Maureen McGough of Townsend, Michael Ridings of Tewksbury, Walter Ridings of Townsend, Michael Dolan of NH and the late Joseph Ridings. Loving grandmother of Kaila and John Shea. Memorial visitation will be held in the Burns Funeral Home, 354 Boston Rd., (Rt. 3A), Billerica, Tuesday, 4-7 PM. Relatives and friends invited. www.burnsfuneralhomes.com