Link to scrapbook at The University of Iowa Libraries.
Sale 2444 Lot 318 Swann Auctions
(WEST.) Gurney; photographer. Group photo of the Rocky Mountain Press Club which reported on the Transcontinental Railroad.
Albumen photograph, 8 3/4 x 18 1/4 inches to sight, on plain mount with original printed over-mat; moderate damp-staining. New York,  In 1868, a group of eastern newspaper reporters traveled west by train to see the progress of the Union Pacific's Transcontinental Railroad. They were organized by Charles Anderson Dana of the New York Sun, and were dubbed the Rocky Mountain Press Club. This composite photograph documented 28 of the participants, who are named with their newspapers in the key. See Ambrose, Nothing Like It In the World: The Men Who Built the Transcontinental Railroad, page 275. Though a scrapbook of their newspaper clippings is held by the University of Iowa, no other copies of this photograph have been traced.