Lustig is still good on antimonopolism.
Chester McArthur Destler, "Western Radicalism, 1865-1901: Concepts and Origins," Mississippi Valley Historical Review 31 (Dec. 1944): 335-68, esp., 340-41, quote, 356.
R. Jeffrey Lustig, Corporate Liberalism: The Origins of Modern American Political Theory, 1890-1920 (Berkeley: Univ. of California Press, 1982), 42-46.
William Larrabee, The Railroad Question: A Historical and Practical Treatise on Railroads, and Remedies for their Abuses, 10th ed. (Chicago: Schulte Publishing Company, 1898), 317.
James F. Hudson, The Railways and the Republic (New York: Harper & Brothers, 1886), 287.
"Strikes and Strikers," Union Pacific Employes Magazine, Aug. 1886, p. 199.
For eastern antimonopoly, Lee Benson, Merchants, Farmers & Railroads: Railroad Regulation and New York Politics, 1850-1887 (Cambridge: Harvard Univ. Press, 1955).
