S. R. Callaway to Adams, Jan. 16, 1885, S. R. Callaway to Thomas Neasham, Sept. 30, 1885, T. Neasham and J. N. Corbin to General Manager, Sept. 26, 1885, UP, SG2, ser. 1, box 21
Winter, Making Men, Making Class, 3, and passim.

S. R. Callaway to Adams, Jan. 16, 1885, S. R. Callaway to Thomas Neasham, Sept. 30, 1885, T. Neasham and J. N. Corbin to General Manager, Sept. 26, 1885, UP, SG2, ser. 1, box 21
Winter, Making Men, Making Class, 3, and passim.
Voss, Making of American Exceptionalism, 82, 83.
Craig Phelan, Grand Master Workman: Terence Powderly and the Knights of Labor (Westport, Conn.: Greenwood Press, 2000), 118-19.
For a brilliant and influential account of the contract theory, see Amy Dru Stanley, From Bondage to Contract.
In practice, however, the equivalence between contracts and freedom was never so clear.
Amy Dru Stanley, From Bondage to Contract: Wage Labor, Marriage, and the Market in the Age of Slave Emancipation (New York: Cambridge Univ. Press, 1998).
Pierre Berton, The Impossible Railway: The Building of the Canadian Pacific - A Triumphant Saga of Exploration, Politics, High Finance & Adventure (New York: Knopf, 1972), 373-77.
Tzu-kuei Yen, "Chinese Workers and the First Transcontinental Railroad of the United States of America" (Ph.D. diss., St. Johns Univ., 1976), 36.
Pinkerton, His Personal Record, 24; Testimony of J. H. Strobridge, Palace Hotel, SF, Tuesday Aug. 9, 1887, PRC, 6: 3107, corrected, 3139-40.
Eric Arnesen, "'Like Banquo's Ghost, It Will Not Down': The Race Question and the American Railroad Brotherhoods, 1880-1920," American Historical Review 99 (Dec. 1994): 1607.