 Simmons Field was home to professional baseball once more in 2003 when the Dubois County Dragons of the independent Frontier League moved and became the Kenosha Mammoths.However, the Mammoths failed to attract large crowds and the team moved again after one season in Kenosha.In 2007 the Kenosha Parks Department leased Simmons Field to the Kenosha Unified School District (KUSD).