President Roosevelt with the chief of the US Forest Service, Pinchot, on the river steamer "Mississippi", taken on the trip of the Inland Waterways Commission down the Mississippi River. The purpose of this trip was to awaken interest in the development of the nation's inland waterways, October, 1907. Theodore "Teddy" Roosevelt (October 27, 1858 - January 6, 1919) was the 26th President of the USA from 1901-09. He is noted for his exuberant personality, range of interests and achievements, and his leadership of the Progressive Movement, as well as his "cowboy" persona and robust masculinity. Gifford Pinchot (August 11, 1865 - October 4, 1946) was the first Chief of the United States Forest Service (1905-10). Pinchot is known for reforming the management and development of forests in the US and for advocating the conservation of the nation's reserves by planned use and renewal. He called it "the art of producing from the forest whatever it can yield for the service of man." Pinchot coined the term conservation ethic as applied to natural resources. His leadership put conservation of forests high on America's priority list. He died from leukemia in 1946, at the age of 81.