Cole, Wayne S. Senator Key Pittman and American Neutrality Policies, 1933-1940. Mississippi Valley Historical Review 46 (March 1960): 644-62.
Glad, Betty. Key Pittman: The Tragedy of a Senate Insider. New York: Columbia University Press, 1986.
Israel, Fred L. The Fulfillment of Bryans Dream: Key Pittman and Silver Politics, 1918-1933. Pacific Historical Review 30 (November 1961): 359-80.
___. Key Pittman and New Deal Politics. Nevada Historical Society Quarterly 14 (Fall 1971): 19-25.
___. Nevadas Key Pittman. Lincoln: University of Nebraska Press, 1963.
Libby, Justin H. The Irreconcilable Conflict: Key Pittman and Japan During the Interwar Years. Nevada Historical Society Quarterly 18 (Fall 1975): 129-39.
Pittman, Key. The United States and RussiaObstacles to Recognition of Present Soviet Régime. Annals of the American Academy of Political and Social Science 126 (July 1926): 131-33.
Porter, David L. Key Pittman and the Monetary Act of 1939. Nevada Historical Society Quarterly 21 (Fall 1978): 205-13.
Sewall, Arthur F. Key Pittman and the Quest for the China Market, 1933-1940. Pacific Historical Review 46 (August 1975): 351-71.
___. Key Pittman, the Senate Foreign Relations Committee, and American Foreign Policy, 1933-1940. Ph.D. dissertation, University of Delaware, 1974.
Smith, Harold T. Pittman, Creel, and New Deal Politics. Nevada Historical Society Quarterly 22 (Winter 1979): 254-70.
U.S. Congress. Memorial Services Held in the House of Representatives and Senate of the United States: Together with Remarks Presented in Eulogy of Key Pittman, Late a Senator from Nevada. 77th Cong., 1st sess., 1941-1942. Washington: Government Printing Office, 1942.