MANGIACOTTI, Joseph R. Of Roslindale formerly of Mission Hill. December 20th 2011. Loving brother of Margaret of Roslindale, Michael of Brockton, Daniel of Quincy, Mary Petroski of NH, Regina McConoghy of Roslindale, and the late Gerard. Beloved son of the late Felix and Margaret (Davis). Also survived by many nieces and nephews. A Celebration of Life will be held at the Sacred Heart Church, Roslindale, on Saturday, Jan. 7th at 11:30. Relatives and friends invited. Late member of the Knights of Columbus # 1308, Roslindale.