Chaffin, Pathfinder, 469.
Testimony of John C. Fremont, Sept. 23, 1887, PRC, 7:3846.
David Howard Bain, Empire Express: Building the First Transcontinental Railroad (New York: Viking, 1999), 168, 192.
Speech of Hon. Jacob M. Howard in the Senate of the United States, June 22-23, 1870.
Memphis, El Paso & Pacific Rail Road Co. (Explanation of Wm. Aufermann), Foreign Bondholders Cutting Files, r. 219, vol. 2.
Mark W. Summers, Railroads, Reconstruction, and the Gospel of Prosperity: Aid under the Radical Republicans, 1865-1867 (Princeton: Princeton Univ. Press, 1984), 170-71.
Jay Cooke to Brother Harry, March 20, 1870, Northern Pacific, Letters no. 1 (LB), Jan. 19, 1870 - Sept. 27, 1871, Private Letters, Cooke Papers.
H. Craig Miner, The St. Louis-San Francisco Transcontinental Railroad: The Thirty-fifth Parallel Project, 1853-1890 (Lawrence: Univ. Press of Kansas, 1972), 43-59.
Bain, Empire Express, 168, 193.