Mark Ashley Nunley, age 51, an Oak Ridge, TN resident and Warren County native was born March 15, 1969 and passed May 30, 2020 at his residence following a sudden illness. He was a U.S. Navy veteran, a coal belt operator with TVA, and the son of Belynda Montandon Gregory and husband William of Clinton, TN and father, Ronnie Nunley of Murfreesboro, TN. He was preceded in death by maternal grandparents, Lois and Don Montandon and uncle, Wayne Montandon. In addition to his parents, he is survived by two aunts, Melissa Montandon of Knoxville, TN and Anzena Montandon of Campaign, TN; uncle, Bill (Wilma) Montandon of Sparta, TN; cousins, Rusty (Renee) Montandon of Viola, TN, Jason (Melissa) Montandon of McMinnville, TN, Matt (Victoria) Montandon of Sparta, TN and Mike (Leeza) Montandon of Cookeville, TN; two step-sisters, Diane (Dave) Cecala and Tina (Eddie) Brannon both of Knoxville, TN. A graveside service and interment will be held at 4:30 p.m. Sunday, June 7, 2020 at Friendship Cemetery with Bill Montandon officiating. Visitation will be Sunday from 1:00 p.m. until 4:00 p.m. at High’s. Military grave rites will be conducted by American Legion Post 173 Honor Guard. Online condolences may be made at www.highfuneralhome.com High Funeral Home is in charge of arrangements.