WACONIA - Justin Differding and Kari Lyon announce their engagement. Parents of the couple are Greg and Janet Differding of Ghent, and Dave Lyon of Marshall and Renee Mahlow of Litchfield. Differding is a 2000 graduate of Minneota High school and holds a degree in business management. Lyon is a 2002 Marshall High School graduate and holds a degree in business management. Differding is employed with The Schwan Food Co. in Bloomington. Lyon is employed with OptumHealth in Golden Valley. The couple plans a July 28, 2012, wedding at Holy Redeemer in Marshall.