Joseph McGarry Costello Obituary
The passing of Joseph McGarry Costello (Manhasset, New York) occurred on August 20, 2026. Joseph, born on October 15, 1961, is remembered by those who knew him. Leave a sympathy message to the family on the memorial page of Joseph McGarry Costello to pay them a last tribute.
He was predeceased by: his father Joseph Michael Costello; and his sister Mary Ann Costello. He is survived by: his daughters, Caroline Courtney (Thomas) and Elizabeth Costello; the mother of his children Marilyn Costello; his mother Marianne Kelly Costello; and his siblings, Michael Costello (Danielle), Kelly King (Coleman), Patrick Costello (Susan), Renie Costello (Jim), Brendan Costello (Beverley) and Noelle Jones (Edwin). He is also survived by many nieces, nephews, cousins, and friends.
In lieu of flowers, contributions in McGarry's honor may be made to: Memorial Sloan Kettering (https://give.mskcc.org) orNational Brain Tumor Society.
