FISH, Joan M. (Berg) of Dorchester, formerly of South Boston, March 7, 2017. Devoted mother of Susan Corrigan & the late Michael Corrigan. Dear sister of James H. Berg, Jr & his wife Julie & the late Carol Rossi. Also lovingly survived by her former husband John Corrigan & numerous cousins. Visiting hours at the Casper Funeral Home, 187 Dorchester Street in So. Boston on Friday from 4 to 8 PM. Mass of Christian Burial on Saturday at 10 AM in St. Brigid Church followed by interment at Cedar Grove.