Richard C. Overton, Burlington West; A Colonization History of the Burlington Railroad (Cambridge: Harvard Univ. Press, 1941), 285-89.
Robin Winks, Frederick Billings: A Life (New York: Oxford Univ. Press, 1991), 256-59.
Henry George, Progress and Poverty: An Inquiry into the Cause of Industrial Depressions and of Increase of Want with Increase of Wealth (New York: Robert Schalkenbach Foundation, 1942), 193.
Hudson, Plains Country Towns, 48.
Adams to G. M. Cumming, Sept. 22, 1888, UP, PO, OC, St. Joseph and Grand Island, vol. 25, r. 21.
See Robert Harris to Oakes, March 26, 1886, 137 H.10.10 (F), NP.
Frank Leonard, "Diplomatic Forces of the New Railroad: Transcontinental Terminus Entry at Vancouver and Seattle," Journal of Transport History 28 (March 2007): 21-58.