Mills to CPH, Aug. 10, 1892, CPH Papers, ser. 1, r. 51.
White to J. D. Lynch, Jan. 14, 1887, White to J. W. Hellman, Jan. 14, 1887, White to H. M. Mitchell, Jan. 15, 1887, Correspondence, Outgoing, box 2, Letters from, vol. 1, Dec. 30, 1886-Jan. 21, 1887, White to Arthur Kearney, June 19, 1890, Correspondence, Outgoing, box 4, Aug. 14, 1889-Jan. 11, 1890, White to Patrick Collins, Aug. 14, 1890, Correspondence, Outgoing, box 4, Aug. 14, 1889-Jan. 11, 1890, White Papers.
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.