Parents of the couple are Evon and Nancy Gralapp of Le Mars and Richard and Lorraine Sill of Madelia, Minn.
Gena Sternberg of Denver, Colo., sister of the bride, and Krista Benjamin of Lexington, Neb., served as matrons of honor.
Best man was George Sill of Madalia, Minn., cousin of the bridegroom with Tim Sorenson of Hanska, Minn., cousin of the bridegroom, serving as groomsman.
Seating the wedding guests were Cody Gralapp, brother of the bride and Gerald Tustenson, cousin of the bridegroom.
The reception and dinner were held at 5 p.m. at The Pavilion.
Amanda graduated from Luther College in Decorah and Iowa State University in Ames. She is employed as a research associate at Iowa State University.
Mark is a graduate of National American University in Sioux Falls, S.D., and of South Central College in Mankato, Minn. He is employed with the National Farmers' Organization as a computer programmer/system administrator.
Following their wedding trip to San Diego, Calif., the couple is at home in Nevada, Iowa.