Edna Martha Blackwell Derrick, 85, of Cleveland, passed away Tuesday, February 12, 2019 in a healthcare facility in Ooltewah. She was a member of Bellefounte Baptist Church. She was a member of the Calhoun Order of the Eastern Star #187, Charleston Ruritan Club, and LSONA Asebi Court #36.She was preceded in death by her husband of 55 years, Robert (Bob) L. Derrick, Sr.; parents, William J. Blackwell and Essie Mae Doss Lingerfelt; three brothers, Walter T. Blackwell, Billy J. Blackwell, and Herbert Blackwell; and one sister, Mary Evelyn Blackwell.She is survived by her son, Robert L. Derrick, Jr., and wife Nelda; two grandchildren, Rachel Taylor and husband Cameron, and Adam Derrick; two great-grandchildren, Caydyn Taylor and Madilyn Taylor; one nephew Dwayne Blackwell; one niece, Darice Davis and husband Kevin of Franklin, NC; several great nieces and nephews; one brother, Frank Blackwell of Westland, MI.A celebration of her life will be held at 1:00 p.m. on Friday, February 15, 2019 in the chapel of Ralph Buckner Funeral Home with Reverend Lake Walker officiating. Interment will follow in Sunset Memorial Gardens with a white dove release ceremony and the playing of bagpipes to conclude the service.The family will receive friends from 5:00 p.m. to 7:00 p.m. on Thursday, February 14, 2019 at the funeral home.We invite you to send a message of condolence and view the Derrick family guestbook at www.ralphbuckner.com.