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David Lowenthal, George Perkins Marsh: Prophet of Conservation. (Seattle: University of Washington Press, 2000).
Caroline Crane Marsh, Life and Letters of George Perkins Marsh, Vol. 1 [all published] (New York: C. Scribner's Sons, 1888).
Helena E. Wright, The First Smithsonian Collection: the European Engravings of George Perkins Marsh and the Role of Prints in the U.S. National Museum (Washington: Smithsonian Institution Scholarly Press, 2015).
________. Prints at the Smithsonian: The Origins of a National Collection (Washington: National Museum of American History, 1996).
Digitized volumes from the collection of George Perkins Marsh, sold to the Smithsonian, and still held by the Smithsonian Libraries.