Mary Katherine Norman, age 80, of McArthur, passed away Sunday, March 8, 2020, at Adena Regional Medical Center in Chillicothe, Ohio. She was born August 17, 1939 in West Virginia, daughter of the late Earl Earnest Landman and Sara May Petitt Landman.  Mary was a homemaker, who was also a former employee at Coleman Power Plant, as well as owning her own cleaning business.  She enjoyed being outdoors, taking care of her cats, crafting and spending time with her family.  Mary is survived by her grandchildren, Casey Landman of McArthur, Angie Landman of Chillicothe, John Landman, Jr. of Chillicothe, and Amy (Leland) Nichols of Chillicothe; great-grandchildren, Keegen, Cory, Dylan, Cameron and Michael; great-great-grandchildren, Easton, Dixie, Evalynn, and Avaeriegh; and brother, Gary Landman of Allensville.  Besides her parents, she was preceded in death by her husband, Donald Paul Norman; and her son, John Edward Landman.  In keeping with Mary's wishes, cremation will take place.  Arrangements are under the direction of the McWilliams Funeral Home in Wellston.  Online condolences can be sent to the family at www.mcwilliams-funeralhome.com.