Collection includes a broadside, "To Patrons of Husbandry," November 20, 1878, and letters and papers of L. M. Mitchell, 1913-1914, relating to the Murphy Grange No. 470, Murphy, Oregon, and to cooperative buying and other organizing by granges. Also included is a typescript thesis, "The Oregon Grange and Public Power, 1930-1940," by Timothy C. Clark.