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Lemons, J. Stanley. The Sheppard-Towner Act: Progressivism in the 1920s. Journal of American History 55 (March 1969): 776-86.
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U.S. Congress. Memorial Services Held in the House of Representatives and Senate of the United States, Together with Remarks Presented in Eulogy of Morris Sheppard, Late a Senator from Texas. 77th Cong., 1st sess., 1941-1942. Washington: Government Printing Office, 1943.
Welch, June Rayfield. Sheppard Was the Father of National Prohibition. In The Texas Senator, pp. 116-19. Dallas: G.L.A. Press, 1978.