In researching the book I dug up every available source I could. One great resource was the Roseau Times-Region newspaper of the time. Lots of articles in that on the Polaris racing exploits. In this article, Don Omdahl tells the harrowing tale of his crash that ended his 1976 season. Unbeknownst to Don at the time, that accident also gave Jerry Bunke a shot at the big time.