Johnny and Valerie Davis of Kingsport announce the engagement of their son John Bradley Davis of Jonesborough to Rebecca Sarah Knight of Johnson City. She is the daughter of David and Nancy Knight of Hampton, N.J.Mr. Davis graduated in 1997 from Sullivan Central High School and in 2004 from East Tennessee State University with a bachelor's degree in engineering technology. He also received a bachelor's degree in recording industry from Middle Tennessee State University. He is a direct support specialist with Frontier Health, Bristol, Tenn. Ms. Knight graduated in 1999 from Voorhees High School in Glen Gardner, N.J., and in 2002 from Messiah College, Grantham, Pa., with a bachelor's degree in sociology and in 2008 from Eastern University, St. Davids, Pa., with a master's degree in nonprofit management. She is the director of Home Repair Ministries at Appalachia Service Project, Johnson City. The couple plan to be married on Aug. 14, 2010 in a wedding ceremony at First Presbyterian Church, Elizabethton.