Members of the commission shall be selected and appointed because of their ability and disposition to serve the state’s interest and for knowledge of the state’s natural resources. Members appointed by the governor shall be citizens over twenty-five (25) years of age, residents of the state who have been actually engaged in growing barley in this state for at least five (5) years, and who derive a substantial portion of their income from growing barley in the state of Idaho. There shall be one (1) member from each of the following three (3) districts initially established as follows:
District 1. Boundary, Bonner, Kootenai, Shoshone, Benewah, Latah, Clearwater, Nez Perce, Lewis, Idaho, Adams, Valley and Washington Counties.
District 2. Payette, Gem, Boise, Custer, Canyon, Ada, Elmore, Camas, Blaine, Butte, Gooding, Lincoln, Jerome, Minidoka, Owyhee, Twin Falls and Cassia Counties.
District 3. Lemhi, Clark, Fremont, Jefferson, Madison, Teton, Bingham, Bonneville, Power, Bannock, Caribou, Oneida, Franklin and Bear Lake Counties.