William Henry Jackson
October 6, 1874
Dr. Ferdinand Vandeveer Hayden (seated, center) led the USGS for all nine seasons in which William Henry Jackson (seated, far right) participated. Also pictured (l-r) are William Henry Holmes, George Chittenden, and Ernest Ingersol.
Glass slide. H 10, W 8 cm
Scotts Bluff National Monument, SCBL 769