C. E. Bretherton to I. E. Requa, May 16, 1894 CPH Papers, ser. 1, r. 53.
CPH to Gates, May 8, 1890 CPH Papers, ser. 1, r. 48.

C. E. Bretherton to I. E. Requa, May 16, 1894 CPH Papers, ser. 1, r. 53.
CPH to Gates, May 8, 1890 CPH Papers, ser. 1, r. 48.
Daggett, Chapters, 136-38.
William Mahl, Memoirs: P.I. Co., G18, Mahl Papers.
C. F. Crocker to CPH, Sept. 3, 1891, CPH ser. 1, r. 50.
Mahl, Memoirs, Southern Pacific Co., F-5, Mahl Papers.
S. White to E. B. Pond, Nov. 19, 1890, S. White to H. O. Bradley, Nov. 11, 1890, Correspondence, Outgoing, box 4, Sept. 13, 1890-Jan. 3, 1891, White to J. Irish, Jan. 4, 1892, box 5, White Papers.