WALNUT GROVE — Ashley Wirtz and Joseph Ludemann announce their engagement. Parents of the couple are Robert Wirtz of Walnut Grove, Denise Wirtz of Windom, and Robert and Bonnie Ludemann of Norfolk, Neb. Wirtz is a graduate of Windom Area High School and Southwest Minnesota State University. She is employed with Southwest Health and Human Services in Marshall. Ludemann is a graduate of Norfolk High School and SMSU. He is employed as a customer service specialist with US Bank in Marshall. A Sept. 16, 2017, wedding is planned in Marshall.