Brown, Francis J. 1945. "The Social and Economic Philosophy of Pierce Butler." In Catholic University of America Studies in Sociology. Vol. 8. Washington, D.C.: Catholic Univ. of America Press. Dissertation, Catholic University.
Burner, David. 1969. "Pierce Butler." In The Justices of the United States Supreme Court, 1789–1969: Their Lives and Major Opinions, ed. Leon Friedman and Fred L. Israel. New York: Chelsea House.
Christianson, Theodore. 1935. Minnesota: A History. Chicago: American Historical Society.
Congressional Quarterly. 1989. Guide to the U.S. Supreme Court. Washington, D.C.: Congressional Quarterly.
Danielski, David J. 1964. A Supreme Court Justice Is Appointed. New York: Random House.
Frank, John P. 1940. The Confirmation of Pierce Butler. M.A. thesis, University of Wisconsin.
Reilly, William. 1993. "Pierce Butler." In The Supreme Court Justices: Illustrated Biographies, 1789–1993; ed. Claire Cushman. Washington, D.C.: Congressional Quarterly.
U.S. Supreme Court. 1940. Proceedings of the Bar and Officers of the Supreme Court of the United States in Memory of Pierce Butler (January 27).