Hart, John J. of Marshfield, passed away on June 5, 2013 at the age of 78. Beloved husband of 50 years of Patricia Hart. Loving father of John J. Hart and his wife Jennifer of East Taunton and Karen D. Hart and her fiancé Tracy Myers of Marshfield. Loving grandfather of Victoria, Emma and Katelyn Hart. Dear brother of George A. Hart and Rose F. Hart and the late Maryann Andrews and June Chiampa. Son of the late John and Annie Hart. Also survived by many nieces and nephews. John was born in Cambridge and graduated from Cambridge Rindge and Latin High School. He worked as a service man for Cambridge Gas Co. before he retired. John served in the U.S. Army. Visiting hours will be held in the MacDonald Funeral Home, 1755 Ocean St., Rte 139 in Marshfield on Monday, June 10, 2013 from 4 to 8 p.m. Funeral from the funeral home on Tuesday, June 11 at 8:00 a.m. followed by a Funeral Mass in St. Christine's Church, 1295 Main St., Rte 3A in Marshfield at 9:00 a.m. Interment will be held at a later date.