Memorials may be given to SSM Hospice. Beloved husband of Theresa F. Duncan; loving father of Dorothy A. Crowley and William H. Duncan, Jr.; dear step-father of Barbara J. Mittler, Betty J. Barlow (Kenneth), Bonnie J. Melvin (Michael), Robert J., and Arthur L. Mittler; dear brother of O.H. and Paul Duncan, Mary Nell Brasfield, Ruth Hunt, and Ann Baker; dear grandfather of 13, great-grandfather of 10. Preceded in death by parents, Omar H. and Nellie Duncan. Mr. Duncan was a member of American Legion Post#122 in Warrenton and Local #618 Teamsters Union and served in the United States Army. He was employed by Vess Beverage in Maryland Heights for 23 years.