JAMES S. “JIM” O’BRIEN, in Woburn, Friday, March 20th, unexpectedly. Loving father of Adam R. O’Brien and his wife Valerie of Malden and Shawn D. O’Brien of Pepperell. Dear brother of Dennis, Virgil, Maureen, Gail, Jeannie O’Brien and the late Denise O’Brien. Devoted grandfather of Caitlin, Adam, Conor and Kendra O’Brien. Arrangements are presently incomplete and will be announced next week.