"Statement of Chicago business to/from and through Denver Colonel during the year 1878," 33 1870 7.42-8.11, CB&Q.
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.