Kristen Stevens and Neal Lines, both of Columbia, Mo., have announced their engagement.She is the daughter of Don and Cheryl Stevens, Columbia, Mo. He is the son of Randy and Diane Lines, Lincoln, Mo. Her grandparents are Merle and Ann Smarr, Columbia, Mo., and Madison Stevens, Fredericktown, Mo. His grandparents are Jim and Donna Ferguson, Ottawa, Marie Draves, Ottawa, and Larry Lines, Warsaw, Mo. The wedding is scheduled for July 17, 2010, at Memorial Baptist Church in Columbia, Mo.