Dennis P. Sullivan

Dennis P. Sullivan, 21, a lifelong resident of Quincy, died at Massachusetts General Hospital in Boston on Sunday, June 21, 2015 after a courageous battle with Cystic Fibrosis. He was the beloved son of Lisa M. Cosgrove of Quincy and Michael J. Sullivan and his wife Donna of Mendon. Born and raised in Quincy, he was a graduate of Quincy High School, Class of 2011 and MassBay Community College, where he studied to be an auto technician. Dennis was an auto technician at Quirk Chevrolet in Quincy for the past 3 years. He was an avid Boston sports fan and enjoyed playing baseball. He also loved spending time on Cape Cod.
In addition to his parents, Dennis is survived by his brothers, Sean M. Sullivan and Daniel J. Sullivan both of Quincy and Michael J. Sullivan of Mendon, his grandparents, James E. and Suzanne (Marino) Cosgrove of Rockland and his step-sisters, Annalisa and Isabella Baci of Mendon. He is also survived by many aunts, uncles and cousins.
Memorial Prayers will be held at The Tirrell Room, 254 Quarry St., Quincy on Friday, June 26 at 11 AM followed by a celebration of his life until 3 PM. In lieu of flowers, donations in Dennis' memory may be made to the Cystic Fibrosis Foundation, 220 N. Main St., Suite 104, Natick, MA 01760.