In 1986 he formed the independent music label Tried & True Music and released albums under it.
Walker was diagnosed with throat cancer in 2017, undergoing chemotherapy and radiation therapy, he told the American statesman Austin in 2018.
“I guess I took my singing for granted, and now I don’t,” he told the newspaper.
In 2017, it was announced that Walker had donated more than 100 boxes from his music archives to the Wittliff Collections at Texas State University, including tapes, photographs, handwritten lyrics, and artifacts.
Walker’s survivors include his wife, Susan, son, Django, and daughter, Jessie Jane.