White: "Information, Markets, and Corruption: Transcontinental Railroads in the Gilded Age," Journal of American History 90 (June 2003): 19-43.

Hopkins to CPH, Nov. 11, 1873, CPH Papers, ser. 1, r. 5, Hopkins to CPH, Dec. 4, 1873, ser. 1, r. 6; Fisk and Hatch to the Holders of Central Pacific Railroad Bonds, Jan. 1, 1874, LB 6:45, L. Von Hoffman and Co. to CPH, Nov. 24, 1873, box 22, Hopkins Collection;.

Annual Report of the Board of Directors of the Central Pacific Railroad Co. to the Stockholders for the Year Ending Dec. 31, 1873 (San Francisco, 1874), 7.

New-York Daily Tribune, March 19, 1877, copy in LB, 9:165, box 24, Hopkins Collection.

Railway Age, Aug. 24, 1876, p. 204.

"An English Opinion", Railway Age, April 18, 1878, p. 206.