In August 1869, Gould and Fisk began to buy gold in an attempt to corner the market, hoping that the increase in the price of gold would increase the price of wheat such that western farmers would sell, causing a great amount of shipping of bread stuffs eastward, increasing freight business for the Erie railroad. During this time, Gould used contacts with President Ulysses S. Grant's brother-in-law, Abel Corbin, to try to influence the president and his Secretary General Horace Porter. These speculations in gold culminated in the panic of Black Friday, on September 24, 1869, when the premium over face value on a gold Double Eagle fell from 62 percent to 35 percent. Gould made a small profit from this operation, but lost it to subsequent lawsuits. The gold corner established Gould's reputation in the press as an all-powerful figure who could drive the market up and down at will.[citation needed]