White to Hon. John Swift, Jan. 24, 1891, Correspondence Outgoing, box 4, Jan. 7, 1890-May 10, 1891, White Papers.
Figures from Southern Pacific Company, 1885-1911, box 2E460, Mahl Papers.
W. G. Curtis to CPH, Sept. 6, 1895, HEH Collection.
CPH to J. Kruttschnitt, Aug. 31, 1897, HEH Collection.
E. L. Corthell to CPH, Feb. 217, 1893.
Simon Stevens to Ignacio Mariscal, April 7, 1893, The Two Republics, Aug. 5, 1893, enclosure with Corthell to CPH, Aug. 16, 1893. CPH Papers, ser. 1, r. 51; E. L. Corthell to CPH, Jan. 27, 1894, CPH Papers, r. 52.