The Proportional Representation League was an organization founded at the Memorial Art Institute of Chicago at the World's Columbian Exposition on August 10th-12th, 1893 to promote the cause of proportional representation within the United States. Their activities included distributing information to inquirers on the reform. Prominent members included Rhode Island Governor Lucius F. C. Garvin, federal judge Albert Branson Maris, and economist and labor reformer John R. Commons.
- The Annals of the American Academy of Political and Social Science, Vol. 4 (Nov.,1893), pp. 112-117 https://www.jstor.org/stable/pdf/1009042.pdf
- American Proportional Representation League. The Proportional Representation Review. Chicago: American Proportional Representation League, 1893-1896.https://catalog.hathitrust.org/Record/012512279/Cite
- "The new encyclopedia of social reform: including all social-reform movements and activities,and the economic, industrial, and sociological facts and statistics of all countries and all social subjects", William Dwight Porter Bliss, Rudolph Michael Binder. Funk & Wagnalls, 1908. p. 978
- "Proportional representation", John Rogers Commons. T. Y. Crowell & co., 1896. p. 118
- "The Proportional representation review". 1894. p. 143