Keith and JoAnn Peterson, Argyle, are parents of a son, Wyatt Keith Peterson, born Monday, April 27, 2009 in Memorial Hospital of Lafayette County, Darlington. Wyatt weighs 9 pounds, 11 ounces and is 23 inches long. Grandparents are Lorene and Sherman Peterson, Argyle and Fred and Virginia Beuthin, Mazomanie. Great-grandparents are Mae Ruth Thompson, Richland Center; Marvin and Gloria Beuthin and Joseph Ballweg, all of Sauk City.