As white settlers arrived, logging grew as a major industry in the mountains, and a rail line, the Little River Railroad, was constructed in the late-19th Century to haul timber out of the remote regions of the area. Cut-and-run-style clearcutting was destroying the natural beauty of the area, so visitors and locals banded together to raise money for preservation of the land. The U.S. National Park Service wanted a park in the eastern United States, but did not have much money to establish one. David Chapman, a Knoxville business leader, was appointed to head a commission to turn the area into a national park in 1925. Though Congress had authorized the park in 1926, there was no nucleus of federally owned land around which to build a park. John D. Rockefeller, Jr. contributed $5 million, the U.S. government added $2 million, and private citizens from Tennessee and North Carolina pitched in to assemble the land for the park, piece by piece. Slowly, mountain homesteaders, miners, and loggers were evicted from the land. Farms and timbering operations were abolished to establish the protected areas of the park. Travel writer Horace Kephart, for whom Mount Kephart was named, and photographers Jim Thompson and George Masa were instrumental in fostering the development of the park. Former Governor Ben W. Hooper of Tennessee was the principal land purchasing agent for the park, which was officially established on June 15, 1934. During the Great Depression, the Civilian Conservation Corps, the Works Progress Administration, and other federal organizations made trails, fire watchtowers, and other infrastructure improvements to the park and Smoky Mountains.