What railroad for which Oakes Ames is credit as being the single most important influence in building was caught up in the  Crédit Mobilier scandal?
Oakes Ames Oakes Ames (January 10, 1804 – May 8, 1873) was an American manufacturer, capitalist, and member of the United States House of Representatives from Massachusetts. As a congressman, he is credited by many historians as being the single most important influence in the building of the Union Pacific portion of the transcontinental railroad. He is also noted for the subsequent scandal that alleged the improper sale of stock of the railroad's construction company.
Edward J. Sanford Edward Jackson Sanford (November 23, 1831 – October 27, 1902) was an American manufacturing tycoon and financier, active primarily in Knoxville, Tennessee, in the late 19th century. As president or vice president of two banks and more than a half-dozen companies, Sanford helped finance Knoxville's post-Civil War industrial boom, and was involved in nearly every major industry operating in the city during this period. Companies he led during his career included Sanford, Chamberlain and Albers, Mechanics' National Bank, Knoxville Woolen Mills, and the Coal Creek Coal Mining and Manufacturing Company.