John M. Duball, 63, of Washington, died on Wednesday, September 27, 2017. He was born on May 16, 1954, in Washington, a son of the late Luke and Julia Kolano Duball. John was a graduate of Trinity High School. Mr. Duball was a machinist for over forty years at Allegheny Ludlum Jessop Plant. He was an avid hunter and boater. On September 22, 1990, he married Cheri Simms, who survives. Also surviving are three daughters, OIivia Duball, Hannah (Cameron) Kubiak, and Juliet Duball. He was the last of his immediate family. A Memorial Service will be held at a later date, at the convenience of the family.