Fred Wilbur Powell, The Railroads of Mexico (Boston: Stratford Company, 1921), 134.
H. Craig Miner, The St. Louis-San Francisco Transcontinental Railroad: The Thirty-fifth Parallel Project, 1853-1890 (Lawrence: Univ. Press of Kansas, 1972), 122.
Johnson and Supple, Boston Capitalists, 299, Strong quote 304.
Adams to Callaway, Sept. 8, 1886, UP, PO, OC, vol. 38, r. 34.
Perkins to Forbes, June 30, 1880, J. M. Forbes, In-letters, private from C. E. Perkins, 3 F 3.2-3.3, CB&Q.
for Chicago, Grodinsky, Transcontinental Strategy, 194-95.
CPH to Crocker, Dec. 8, 1881, CPH Papers, vol. 29, ser. 2, r. 6.
Adams to C. F. Morse, April 16, 1885 UP, PO, OC, vol. 28, ser. 2, r. 24.
for the Huntington system, Grodinsky, , 163-65.
CPH to Crocker, March 14, 1883, CPH Papers, vol. 30: 49-50, ser. 2, r. 6.