Our Founder Don Zimmermann was a carpenter by trade. His extensive background was in construction, building, and grading. He completed numerous land development projects and constructed many diverse area businesses. He loved working outside and building was his passion. Together with his wife Ruby, they decided to build a golf course in their hometown of Richfield Wisconsin. You can see Don’s rustic wood-working in the clubhouse, which is a piece of him living on at the course. The lumber in the building was sawed on his own sawmills. With the help of their children; Brian, Dwight, Michele and Scott; Don & Ruby laid out the groundwork for what we know now as Zimmermann’s Kettle Hills Golf Course.