Cooke to Gen. George Sargent, April 20, 1871, Northern Pacific, Letters no. 1 (LB), Jan. 19, 1870 - Sept. 27, 1871, Private Letters, Jay Cooke.
tributary, Cooke to Geo. W. Colton, March 26, 1873, LBs, Cooke Papers.

Cooke to Gen. George Sargent, April 20, 1871, Northern Pacific, Letters no. 1 (LB), Jan. 19, 1870 - Sept. 27, 1871, Private Letters, Jay Cooke.
tributary, Cooke to Geo. W. Colton, March 26, 1873, LBs, Cooke Papers.
Den Otter, Philosophy of Railroads, 170-73.
Enclosure 5, no. 4, Statement by Mr. McMullen with Documents (from the Montreal Herald), Canadian Pacific Railway, Correspondence, 64.
Den Otter, Philosophy of Railroads, 175.
Cooke to Wetmore, Sto Johns N.B., May 23, 1873, LBs, Cooke Papers.
As Charles Francis Adams later phrased the results, the Union Pacific was "in the position of a man whose hands are tied fighting against men armed to the teeth. We cannot lease; we cannot guarantee; and we cannot make new loans on business principles, for we cannot mortgage or pledge; we cannot build extensions; we cannot contract loans as other people contract them. All these things are inhibited to us; yet all these things are habitually done by our competitors."