Title: Persistent Progressives
Subjects: Rocky mountains, Farmers, Agriculture, cooperative, Family farms, Agriculture and politics, Rocky Mountain Farmers Union, HISTORY / United States / State & Local / West (AK, CA, CO, HI, ID, MT, NV, UT, WY), Cooperative Agriculture, Economic conditions, Political activity, Progressivism (United States politics), TECHNOLOGY & ENGINEERING / Agriculture / General, History