Report of the Senate Select Committee on Interstate Commerce . . . 49th Cong., 1st sess., Submitted to the Senate, Jan. 18, 1886 (Washington, D.C.: GPO, 1886), 182, 215-16.
CPH to Crocker, March 14, 30, 1883 CPH Papers, vol. 30, ser. 2, r. 6.
CPH to Speyer & Co., Jan. 6, 1881, CPH Papers, vol. 74, ser. 2, r. 13.
CPH to Speyer & Co., Jan. 6, 1881, CPH Papers, vol. 13, ser. 2, r. 13.
Speyer & Co. to CPH, Dec. 15, 1883, CPH Papers, vol., ser. 1, r. 34.
Gates to Chambers, Jan. 8, 1885, CPH Papers, vol. 92, ser. 2, r. 15.
Also Gates to J. T. White, Jan. 31, 1885, Gates to A. N. Towne, July 15, 1885, C. Crocker to CPH, Dec. 10, 1883, no. 260, Crocker Papers.
W. G. Curtis to CPH, Sept. 6, 1895, HEH Collection.
CPH to J. Kruttschnitt, Aug. 31, 1897, HEH Collection.