CPH to Hopkins, Dec. 14, 1876, LB, 9:107, box 24, Hopkins Collection.
CPH to Colton, Nov. 15, Dec. 20, Dec. 25, 1876, Octopus Speaks, 323, 327, 328.
"Texas and Pacific and Southern Pacific," Railway Age, Dec. 28, 1876, p. 570.
Klein, Union Pacific, 378-84.
Mark W. Summers, Railroads, Reconstruction, and the Gospel of Prosperity: Aid under the Radical Republicans, 1865-1867 (Princeton: Princeton Univ. Press, 1984), 170-71.
Jay Cooke to Brother Harry, March 20, 1870, Northern Pacific, Letters no. 1 (LB), Jan. 19, 1870 - Sept. 27, 1871, Private Letters, Cooke Papers.
Hudson, Plains Country Towns, 44-47, 74-78.
Richard C. Overton, Burlington West; A Colonization History of the Burlington Railroad (Cambridge: Harvard Univ. Press, 1941), 285-89.
Robin Winks, Frederick Billings: A Life (New York: Oxford Univ. Press, 1991), 256-59.
