Ralph Stanley, a patriarch of Appalachian music who with his brother Carter helped expand and popularize the genre that became known as bluegrass, died Thursday. He was 89. Stanley died at his home in Sandy Ridge, Virginia, because of difficulties from skin cancer, publicist Kirt Webster said. Stanley was born and raised in Big Spraddle, Virginia, a land of coal mines and deep forests where he and his brother formed the Stanley Brothers and their Clinch Mountain Boys in 1946. Their father would sing them old traditional songs like "Man of Constant Sorrow," while their mother, a banjo player, taught...