Daniel and Barbara Mahnken, of Kansas City, announce the engagement of their daughter, Rebecca Marie Mahnken, of Kansas City, to John Charles Koffman, of Columbia. He is the son of Robert and Doris Koffman, of Sedalia.
The future bride, a 2003 graduate of Park Hill High School in Kansas City, received a bachelor of science degree in elementary education with a minor in early childhood education from Northwest Missouri State University in Maryville in 2007. She is working toward a master of science in teacher leadership at Northwest Missouri State University. She is a preschool teacher.