John J. Niewinski, 88, of New Britain, CT died peacefully Sunday, June 25, 2017. John was born in New Britain, CT and was the son of the late Michael and Anna (Reczko) Niewinski. He worked as a foreman for Steamfitter Local. John, a highly decorated United States Marine Corp. veteran served his country honorably during the Korean War, where he received the Korean Service Medal, U.N. Service Medal, and the National Defense Service Ribbon. John received three purple hearts and was the Commander of the Chapter 51 Military Order of the Purple Heart Society, and was a member the VFW Post#511, the Northwestern T.G.M. Memorial Post, both of New Britain, CT, the Spartans Veterans Athletic Club Berlin, CT, Hardware City Marine Corp. League. He was a very active member of the VFW and the Purple Heart Society and you could always find him marching in a parade honoring those who served along with honoring the deceased military members who served by participating with the honor guard on Memorial Day and Veterans Day at the Iwo Jima Memorial and many other memorials throughout Connecticut. John was a loving husband and father who enjoyed spending most of his time with his family. He was a faithful member of Holy Cross Church, New Britain. John is survived by his beloved wife of sixty-eight years - Irene (Kalisz) Niewinski of New Britain, CT, his three daughters - Laura Niewinski and June Anderson both of New Britain, CT and Arlene Polzun and her husband Steven of Newington, CT, his three grandchildren -Thomas John, Shelby and Avalon, his two great grandchildren - Farrah and Maya and several nieces and nephews. John was predeceased by his two brothers Lawrence and Leo Niewinski and his sister Hedy Jewell.