William Henry Jackson was an American photographer, artist and writer best known for his landscapes of the American West. He acted as photographer for the U.S. Geological and Geographical Survey of the Territories in 1870-1879, producing some of the earliest photographs of Utah, Colorado, and Wyoming wilderness areas. The collection consists of diaries, letters, photographs, sketchbooks, notebooks, and ephemera. Jackson's diaries, diary transcripts and narratives cover his years as a Union soldier, 1862-1863; his travels through Nebraska, Utah, and California, 1866-1867; his years as a photographer in Omaha and as a photographer with the U.S. Geological Surveys, 1870-1878; his world tour with the World's Transportation Commission, 1894-1896; a short period of his work for the Detroit Publishing Company and his later years as an independent photographer and painter, 1925-1942. Jackson's letters to his wife and a few photographs date from the time of the World's Transportation Commission tour, 1894-1896.