For range of beliefs, Leon Fink, Workingmen's Democracy: The Knights of Labor and American Politics (Urbana: Univ. of Illinois Press, 1983), 7-9.
John L. Thomas, Alternative America: Henry George, Edward Bellamy, Henry Demarest Lloyd, and the Adversary Tradition (Cambridge: Harvard Univ. Press, Belknap Press, 1983), 117-23.
Powderly, Thirty Years of Labor, 173-86.
Donna A. Barnes, Farmers in Rebellion: The Rise and Fall of the Southern Farmers Alliance and the Peoples Party in Texas (Austin: Univ. of Texas Press, 1984), 117-20, 140-44.
Ostler, Prairie Populism, 2-11, 91-153.
C. Crocker to CPH, Nov. 29, 1887, CPH Papers, ser. 1, r. 46.