COTTONWOOD - Kristen Swope to Derek Louwagie announced their engagement. Parents of the couple are Penny Swope and Dave Swope of Cottonwood and Ruth and Tony Louwagie from Cottonwood. Swope is a 2006 graduate of Lakeview High School and 2010 graduate of Mount Marty College with a bachelor of science degree in nursing. She is a nurse at Avera St. Luke's in Aberdeen, S.D. Louwagie is a 2004 graduate of Lakeview High School and 2008 graduate of South Dakota State University with a bachelor of science in construction management. He is a field representative for North Star Mutual Insurance in Aberdeen, S.D. The couple plans a Sept. 10, 2011, wedding at St. Clotilde Catholic Church in Green Valley.