Galen Lee Hanselman, 72, known to the aviation community as an expert in backcountry flying and author of a series of backcountry guidebooks, died May 6 in Twin Falls, Idaho. He had been diagnosed with myasthenia gravis, an autoimmune disease, in 2018, and early this year was diagnosed with liver cancer.
Source: aopaIdaho flying expert Galen L. Hanselman dies