Crocker to CPH, July 3, 1890, CPH Papers, ser. 1, r. 48.
Testimony of CPH, Testimony of Artemas Holmes, PRC, 1:40, 178; Adams to A. B. Stickney, Dec. 6, 1888, UP, PO, OC, vol. 45, ser. 2, r. 40.
Perkins to Forbes, Feb. 24, 1881, F 3.2.3.5, CB&Q.

Crocker to CPH, July 3, 1890, CPH Papers, ser. 1, r. 48.
Testimony of CPH, Testimony of Artemas Holmes, PRC, 1:40, 178; Adams to A. B. Stickney, Dec. 6, 1888, UP, PO, OC, vol. 45, ser. 2, r. 40.
Perkins to Forbes, Feb. 24, 1881, F 3.2.3.5, CB&Q.
Calvert to Holdrege, April 3, 1886, Holdrege to Potter, April 6, 1886, Potter to Perkins, April 12, 1886, CB&Q, 33 1880 3.1.
C. Crocker to CPH, Nov. 29, 1887, CPH Papers, ser. 1, r. 46.
For the defeat of the strike, Official History, 38.
McMurry, Great Burlington Strike, 19-23, 42-45.
For 1886 negotiations, see Notes Taken during a Discussion between Mr. Potter and Committee of Engineers with Potter, Copy, March 21, 1886, 33, 1880, 3.13.21, CB&Q.
JCP to Perkins, Feb. 17, 1888, 33, 1880, 9.11, no. 2, CB&Q.
H. B. Stone to Perkins, Feb. 18, 1888, Table . . . What Full Rate Engineers Would Have Received in 1887, n.d., 1888, 33, 1880, 9.11, no. 2, CB&Q.
McMurry, Great Burlington Strike, 41.