40
Walter A. McDougall, Throes of Democracy: The American Civil War Era 1829–1877 (New York: HarperCollins, 2008), 140.
41
Daniel J. Boorstin, The Americans: The National Experience (New York: Vintage Books, 1965), 25.
42
Daniel J. Boorstin, The Americans: The National Experience (New York: Vintage Books, 1965), 25.
43
Louis P. Cain, "Entrepreneurship in the Antebellum United States", The Invention of Enterprise, ed. David S. Landes, Joel Mokyr, and William J. Baumol (Princeton, NJ: Princeton University Press, 2010), 348.
