Denny is a retired agency manager for Farm Bureau Insurance. He graduated from Milligan College with a B.S. in 1976. Over the years he has served on the Board of Directors for many organizations in his community, such as the Blount Memorial Hospital, Blount County United Way, the Red Cross and Alcoa Kiwanis Club. He also served as the chairman of the board for the 2008 United Way campaign and Milligan College Trustees. In 2002 Denny completed the Class of Leadership Program.