September 1867. Dr. Anderson in a field of Cinchona succiruba in the Sikkim Himalaya. Note the bamboo forest in the background. Courtesy of The Archives of the Gray Herbarium, Harvard University
July 1877. Pictures of the United States Geological Survey of the Territories under the direction of Ferdinand Vanderveer Hayden. Photograph taken by William Henry Jackson at La Veta Pass, Colorado. Party includes Sir Joseph Dalton Hooker, Asa Gray, Mrs. Strachey, Jane Loring Gray, Captain Stevenson, Dr. Lanborn, General Strachey, Ferdinand Vanderveer Hayden. Courtesy of The Archives of the Gray Herbarium, Harvard University
Circa 1880s. John H. Redfield [1815-1895] collecting flowers at Mt. Desert Island, Maine. The Flora of Mount Desert Island, Maine was his last work. Courtesy of The Archives of the Gray Herbarium, Harvard University
1884. Cyrus Guernsey (C.G.) Pringle [1838-1911] self portrait titled "Left in the Desert". Arizona. Courtesy of The Archives of the Gray Herbarium, Harvard University
August 1890. Elinor Lambert & Walter Deane [1848-1930], Jaffery, New Hampshire. Courtesy of The Archives of the Gray Herbarium, Harvard University
9 July 1896. Josselyn Botanical Society near Hillman Cascade, Industry, Maine. Courtesy of The Archives of the Gray Herbarium, Harvard University
