Age 86, Marlow - Graveside service will be at 11:00 AM Friday at Sunset Memorial Gardens with Pastor Bill Schneider, St. John Lutheran Church officiating. Mrs. Duncan died Sunday in Lawton. Burial will be under the direction of Becker Funeral Home & Cremation Service. She was born February 15, 1924 in Lawton to Norman L. and Carrie J. (Aubrey) Allison. Mrs. Duncan graduated from Lawton High School in 1942. She married Roy A. Duncan on August 1, 1941 in Verden. He died December 19, 1989. She worked as a librarian for the Carnegie Library in Lawton and later at Altus Air Force Base Library. Mrs. Duncan was a member of Westside Christian Church in Duncan. Survivors include a son, Dave A. Duncan and his wife Janyce, Owasso, a daughter Cori Wheat and her husband Glen, Duncan, four grandsons, Dr. Kelly Duncan, Jackson, Tennessee, Dustin Duncan, Tahlequah, Dallas Duncan, Claremore and Jake Wheat, Duncan and a granddaughter, Allison Wheat, Duncan and seven great grandchildren. She is preceded in death by her husband, parents and two brothers, Raymond Allison and Carroll (Dick) Allison. Memorial contributions may be made to the National Multiple Sclerosis Society, 4606 E. 67th Street, Suite 103, Tulsa, OK 74136 or to the Alzheimer's Association, 6465 S. Yale, Suite 312, Tulsa, OK 74136.