Kathryn Joan Darby was born on January 26, 1933 in Ponca City, OK to Robert and Esther (Sills) Cox. Kathryn passed from this life on Wednesday, December 23, 2020 at the age of 87. She was preceded in death by her parents and a sister, Sara Cox. She is survived by her children: John, Fred and Esther Darby and a granddaughter, Sara Darby all of Tulsa, OK. Private family service with interment in Rose Hill Memorial Park. In lieu of flowers donations may be made in her memory to the Tulsa SPCA.