to Grant and suggested that Akerman should be removed. Grant agreed, and named former Oregon Senator George H. Williams as Akerman's replacement; Williams was seen as more favorable to railroad interests. On the issue of curtailing the Klan prosecutions, according to historian William S. McFeely, "[w]ith Akerman's departure on January 10, 1872, went any hope that the Republican party would develop as a national party of true racial equality." Yellowstone (1871-1872) In 1871, Delano organized America's first federally funded scientific expedition into Yellowstone, which was headed by U.S. Geologist Ferdinand V. Hayden. Delano gave specific instructions for Hayden to make a geographical map of the area and to make astronomical and barometric observations. Delano stated that Hayden's expedition was directed to "...secure as much information as possible, both scientific and practical...give your attention to the geological, mineralogical, zoological, botanical, and agricultural resources of the country." Delano also ordered Hayden to gather information on Native American tribes who lived in the area. Hayden's expedition was outfitted by an extensive scientific team that included two botanists, a meteorologist, a zoologist, an ornithologist, a mineralogist, a topographer, an artist, a photographer, a physician, hunters, mule teams and ambulances, and a support staff. On March 1, 1872 Ulysses S. Grant signed the Organic Act, incorporating Hayden's findings and discoveries and creating Yellowstone, the world's first national park. The law provided that the Secretary of the Interior exercise "exclusive control" over Yellowstone; As Delano was the incumbent, this made him the first overseer of the first national park in the world. The poaching of fish and wildlife, including bison, was forbidden, and Delano was authorized to preserve the "natural curiosities and wonders" found inside the park. Delano was now in charge of millions of acres of land, however, he was not provided any funding to care for it. Instead, he was given the power to grant 10-year leases in order to raise money to pay for maintaining the park. As soon as the park was created, Delano was inundated by requests for hotel concessions, and he also had to determine the control and use of existing facilities in the park's northern section. Delano appointed N. P. Langford the first Supervisor of Yellowstone in 1872; Langford banned private toll roads and submitted a plan to build and maintain a park road system free to the public, but Congress refused to fund it. Congress also refused to