The engagement of Elisabeth Rothberger and Nicholas Scott DeSha is announced today. The future bride is the daughter of Dave and Marianne Smotherman and Susan and Earl Rothberger Jr. Randy and Sandy DeSha are parents of the prospective bridegroom. The wedding is planned for Saturday, Dec. 12, at the Wedding Chapel. The future bride is the granddaughter of Earl and Betty Rothberger and the late Nic and Helen Knoph of Knoxville. Miss Rothberger is a graduate of Chattanooga Christian School. She attended East Tennessee State University and the University of Tennessee at Chattanooga. She is a certified phlebotomist. She is a member of Signal Mountain Presbyterian Church, and is a private home care provider. The future bridegroom is the grandson of John and Doris Hurst and the late Mr. and Mrs. Gene DeSha. Mr. DeSha is a graduate of Chattanooga Christian School. He is a member of Ridgedale Baptist Church, and is self-employed.