Mr. Carlson is a radio broadcaster by profession. He has owned and operated ten radio stations in Arizona, Idaho, Nevada, and Utah. He has completed thirty-seven marathons including those in New York, Boston, and Pikes Peak, plus numerous 5 and 10K races. He has completed the 42-mile Grand Canyon Double Cross endurance race a rigorous course traveling from the South Rim to the North Rim, then back. In 2001, at age 71, Mr. Carlson scaled Mt. Kilimanjaro, the highest peak on the African continent (19,340 feet).