Nolan B. Harmon, a retired bishop of the United Methodist Church, has served the church in many capacities since 1920. He is the author of Understanding the United Methodist Church, also published ...ver maisNolan B. Harmon, a retired bishop of the United Methodist Church, has served the church in many capacities since 1920. He is the author of Understanding the United Methodist Church, also published by Abingdon.ver menos