Henry V. Poor, Manual of the Railroads of the United States for 1872-73 (New-York: H.V. & H.W. Poor, 1872), xxxii-xxxiii, hereafter Poor, Manual of Railroads.
For other accounts of Congressional action see Maury Klein, The Union Pacific.
Arthur M. Johnson and Barry E. Supple, Boston Capitalists and Western Railroads; A Study in the Nineteenth-century Railroad Investment Process (Cambridge, Harvard University Press, 1967), 197.
Maury Klein, The Union Pacific: Birth of a Railroad, 1862-1893 (Garden City, N.Y. : Doubleday, 1987), 13-16.
David Lavender, The Great Persuader: The Biography of Collis P. Huntington (Niwot: Univ. Press of Colorado, 1998, orig. ed., 1969), 105-7.
Stanford was probably worth $250,000. Huntington's net worth may have been $50,000, and Crocker and Hopkins, $30,000 each.
Lavender, Great Persuader, 95, 388.
Lavender, Great Persuader, 1-10, 94-95