Mary Lois Duncan, 82 of Bowling Green died April 8, 2018 at Signature Health Care. The Warren Co. native was the daughter of the late Walter Duffer and Irene Hatler Duffer. Mrs. Duncan was preceded in death by her husband, Robert Earl Duncan and two brothers, John Duffer and Walter Duffer. She was a member of White Stone Quarry Baptist Church and was a cook at Rockfield Elementary for 25 years. Mrs. Duncan is survived by her daughter, Lisa (Mark) Smith and her son, Richard (Kathy) Duncan; her grandchildren: Erica Bibby, Josh Duncan, Clayton Duncan, Ashley Smith, Alexandria Smith, Erin Smith and Austin Smith and 3 great grandchildren. Private graveside services will be held with burial in Bowling Green Gardens. Cone Funeral Home is in charge of arrangements.