Geographical Explorations and Surveys West of the 100th Meridian, Photographs Showing Landscapes, Geological, and Other Features of Portions of the Western Territory of the United States, Obtained in Connection with Geographical and Geological Explorations and Surveys West of the 100th Meridian
Timothy O'Sullivan William H. Bell
American, born Ireland. 1840–1882 American, born England 1830–1910
Gift of Ansel Adams in memory of Albert M. Bender