, which described the second Powell expedition, in 1908. He died in New York City on January 29, 1935. Over 800 digital images shown selected from nearly 900 photographic prints, relief halftones, postcards, negatives, tintypes and pen and ink drawings in Dellenbaugh’s personal collection. Depicting the Colorado River region and other areas of the West, these photographs include works by E. O. Beaman, James Fennemore, and John K. Hillers, photographers on the 1871 Powell expedition, as well as halftone prints of their images, apparently created for inclusion in Dellenbaugh's books. Photographs by Dellenbaugh and other amateur photographers are accompanied by images from professional photographers William Henry Jackson and the Kolb Brothers. Subjects include the Grand, Glen, and Havasu Canyons, the Colorado and Green Rivers, Zion National Park, as well as miscellaneous photographs of Arizona, California, Colorado, and Utah, and portraits of expedition members and Native Americans. History of the Collection The images, which were created between 1871 and 1934, were collected by Dellenbaugh. Yale acquired them from the antiquarian bookseller, Edward Eberstadt & Sons. The photographs are primarily identified by caption information. Where captions were not present, identifications were drawn from reference to Dellenbaugh's published works. Cite as: Frederick Samuel Dellenbaugh Collection of Photographs and Drawings of the Colorado River Region. Western Americana Collection, Beinecke Rare Book and Manuscript Library, Yale University. Call Number: WA Photos 271