The Bonner County Sheriff's Office says the three people on the airplane were believed to be 58-year-old Pamela Bird, widow of renowned inventor Forrest Bird, plus 84-year-old Donald and 80-year-old Tookie Hensley, of Mohave Valley, Arizona. Officials say the flight originated from the Bird Aviation Museum and Invention Center in Sagle, Idaho, which has its own airstrip, and was headed to Minot, North Dakota and other locations from there.