By Ken Ward Jr. A miner injured a week ago in a welding incident at a Wyoming County coal mine has died, state and federal officials said. Donald Workman, 58, of Gilbert, died on Thursday evening, after being injured a week earlier, on July 29, according to the state Office of Miners' Health, Safety and Training and the federal Mine Safety and Health Administration. In a prepared statement, state officials said only that "initial reports" indicated that there was an "ignition" in the shaft at Alpha Natural Resources subsidiary Spartan Mining's Road Fork No.