COSTELLO, Peter G. In Quincy, formerly of Dorchester, December 23rd. Beloved son of the late Joseph M. and Anna M. (O'Brien). Loving brother of Joseph P. Costello of Quincy. Nephew of the late Nora Doherty. Visiting hours in the Murphy Funeral Home, 1020 Dorchester Ave., DORCHESTER, Wednesday 5-8 P.M. Funeral Mass in St. Peter Church, Thursday morning, December 27, at 10 A.M. Relatives and friends invited. Veteran U.S. Air Force. In lieu of flowers, donations in his memory may be made to St. Peter Church, 309 Bowdoin St., Dorchester, MA 02122. Interment in New Calvary Cemetery, Boston.