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Cherny, Populism, Progressivism, 36-37, 40-43.
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Margaret Kolb Holden, "The Rise and Fall of Oregon Populism: Legal Theory, Political Culture, and Public Policy, 1868-1895" (Ph.D. diss., Univ. of Virginia, 1993), 2-6, 16-17, 19-21, 109-12, 151-52, 175-76, 235-36, 251-55, 406-14, 468, 472, 478-79, 497, 512, 517-27.
Howard W. Allen and Erik W. Austin, "From the Populist Era to the New Deal: A Study of Partisan Realignment in Washington State, 1889-1950," Social Science History 3 (Winter 1979): 119-21.