Nancy Joan Keathley Koper, 90, of Bowling Green, passed away on Sunday, December 28, 2025 at the Hospice House. The Van Buren, Missouri native was the daughter of the late Glenn Harrison Keathley and Virginia Wilson Keathley. In addition to her parents, she was preceded in death by her husband, Dr. James A. "Jim" Koper; and a brother, David Keathley.

Services will be private and burial will be in Fairview Cemetery.

She is survived by a son, Dr. James Keathley Koper (Patricia); a daughter, Kelly Ann Koper; two grandchildren, LCDR James Kenneth Koper (Elaine) and Katherine Koper Marcum (Zach); and three great-grandchildren, Phineas James Marcum, Phoebe Potter Marcum and Lilly Amaral Koper.