Ronald Guilyard, 65, of St. Marys, died Wednesday, Feb. 29, 2012 at Shadyside Hospital in Pittsburgh after a short illness. He was born Jan. 16, 1947, in DuBois, son of the late Gene Sr. and Eloise (Enty) Guilyard. On Sept. 19, 1970, he married Bonita (Jeter) Guilyard of St. Marys. Ronald lived for most of his life in St. Marys. He attended Bennetts Valley schools and worked at Pure Carbon in St. Marys. He was a staff sergeant in the United States Marine Corp during Vietnam, including during the Battle of Khe Sanh, and served with A Company 5th Tanks. He was the president of Vietnam Veterans of America Bucktail Chapter 720 of Dagus Mines; and a member of the American Legion #978 of Weedville, the Mt. Zion Historical Society, Penfield Firemen’s Club, and the Horton Twp. Sportsmen’s Club. He enjoyed golfing and the casino in Salamanca.Besides his wife, he is survived by a son, Ronald G. Guilyard and his wife Jennifer of St. Marys; and a brother, Gene Guilyard and his wife Karen of Byrnedale. He was predeceased by his parents. There will be no public visitation for Ronald Guilyard.Arrangements are under the direction of the Ralph M. Geer Funeral Home in Penfield.