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New York: Harper Collins, 1993.
- Christman, Margaret C. S. 1846: Portrait of the Nation.
Washington: Smithsonian Institution Press, 1996.
- Foner, Eric. The Reader's Companion to American History. Boston:
Houghton Mifflin Company, 1991.
- Hafertepe, Kenneth. America's Castle: The Evolution of the
Smithsonian Building and Its Institution, 1840-1878. Washington, Smithsonian
Institution Press, 1984.
- True, Webster P. The First Hundred Years of the Smithsonian Institution,
1846-1946. Washington: n.p., 1946.
- portraits in this project thanks to the National Portrait Gallery
