Tanner, Ralph Melvis. James Thomas Heflin: United States Senator, 1920-1931. Ph.D. dissertation, University of Alabama, 1967.
___. Senator Tom Heflin as Storyteller. Alabama Review 15 (January 1962): 54-60.
___. The Wonderful World of Tom Heflin. Alabama Review 36 (July 1983): 163-74.
Thornton, J. Mills, III. Alabama Politics, J. Thomas Heflin, and the Expulsion Movement of 1929. Alabama Review 21 (April 1968): 83-112.
Watson, Elbert L. J. Thomas Heflin. In Alabama United States Senators, pp. 115-19. Huntsville, AL: Strode Publishers, 1982.
Yeomans, G. Allen. A Rhetorical Study of the Cotton Advocacy of James Thomas Heflin, 1904-1920. Ph.D. dissertation, Louisiana State University and Agricultural and Mechanical College, 1966.
___. A Southern Segregationist Goes to Gettysburg. Alabama Historical Quarterly 34 (Fall & Winter 1972): 194-205.