CASPER, Wyo. — Dorothy LeMasurier was sitting in a back passenger seat in a twin-engine Beechcraft as her husband, Dalton, piloted the aircraft over Wyoming on Saturday, May 11, 1957. She read a magazine as the time and vast landscape passed beneath them.
There was nothing unusual about this moment. Dalton — an experienced and enthusiastic amateur pilot — had safely flown the couple and himself too many times to count over their years together. In their hometown of Duluth, Minnesota, the couple were well known and popular members of the community.
Dalton was barely in his 20s when he built his first radio station during the exiting new medium’s early years in Grand Forks, North Dakota…