Catherine Costigan DeChello, age 79, of Shelton, passed away on Tuesday December 13, 2011 in St. Vincent's Medical Center, Bridgeport. Catherine, a retired bookkeeper for Specialized Book Company of Stratford, was born in Bridgeport to the late George and Mary (Saykosky) Costigan and has been a life long area resident. She was a graduate of Bassick High School and was an avid reader, cross word puzzle enthusiast and loved to take trips to the Casino's. A loving mother, she enjoyed spending time with her friends and family who she devoted her entire life to. Survivors include her beloved children Kenneth A. DeChello and his wife Chris of Seymour, Cheryl Tormey and her husband Raymond of Monroe, Angela M. Chicarelli-Ghent and her husband William of Ansonia, Debra Rivera and her husband Jose of Bridgeport, and Tracey DeChello and her companion Michael Whitacre of Stratford, 5 grandchildren Samantha and Alexandra DeChello, Amanda and Thomas Chicarelli, and Maliah Rivera, 2 step-grandchildren Ashley and David Adams and a step-great-granddaughter Madison. In addition to her parents she was pre-deceased by her stepfathers Louis Sabo and Charles Gedion, and a granddaughter Gina Marie DeChello. Friends may greet her family on Friday December 16th from 4-7 p.m. in the Adzima Funeral Home 50 Paradise Green Place Stratford. All other services and interment will be private. In lieu of flowers those desiring may make donations to Swim Across the Sound c/o St. Vincent's MC 2800 Main St Bridgeport, CT. 06606 or to ASPCA 359 Spring Hill Rd. Monroe, CT. 06468