• Roosevelt, Theodore. The Selected Letters of Theodore Roosevelt. Edited by H. W. Brands. New York: Cooper Square Press, 2001.

• Roosevelt, Theodore. The Works of Theodore Roosevelt. Memorial ed., 24 vols. Edited by Hermann Hagedorn. New York: Scribner’s, 1926.

• Trani, Eugene P. The Treaty of Portsmouth: An Adventure in American Diplomacy. Lexington: University of Kentucky Press, 1969.

• Wimmel, Kenneth. Theodore Roosevelt and the Great White Fleet: American Sea Power Comes of Age. Washington, D.C.: Brassey’s, 1998.

• Young, James Harvey. Pure Food: Securing the Federal Food and Drugs Act of 1906. Princeton, N.J.: Princeton University Press, 1989.