(en-US) Frank B. Williams, « The Poll Tax as a Suffrage Requirement in the South, 1870-1901 », The Journal of Southern History, vol. 18, no 4, , p. 469–496 (ISSN0022-4642, DOI10.2307/2955220, lire en ligne, consulté le )
(en-US) Sarah Wilkerson-Freeman, « The Second Battle for Woman Suffrage: Alabama White Women, the Poll Tax, and V. O. Key's Master Narrative of Southern Politics », The Journal of Southern History, vol. 68, no 2, , p. 333–374 (ISSN0022-4642, DOI10.2307/3069935, lire en ligne, consulté le )
google.fr
books.google.fr
(en) Charles A. Gallagher et Cameron D. Lippard, Race and Racism in the United States: An Encyclopedia of the American Mosaic [4 volumes], ABC-CLIO, (ISBN978-1-4408-0346-8, lire en ligne)
(en-US) Paula A. Monopoli, Constitutional Orphan: Gender Equality and the Nineteenth Amendment, Oxford University Press, (ISBN978-0-19-009280-1, lire en ligne), p. 74
issn.org
portal.issn.org
(en-US) Vera Briscoe, « The Poll Tax as a Voting Prerequisite », The Bulletin of the National Tax Association, vol. 29, no 3, , p. 66–75 (ISSN2327-8706, lire en ligne, consulté le )
(en-US) Frank B. Williams, « The Poll Tax as a Suffrage Requirement in the South, 1870-1901 », The Journal of Southern History, vol. 18, no 4, , p. 469–496 (ISSN0022-4642, DOI10.2307/2955220, lire en ligne, consulté le )
(en-US) Sarah Wilkerson-Freeman, « The Second Battle for Woman Suffrage: Alabama White Women, the Poll Tax, and V. O. Key's Master Narrative of Southern Politics », The Journal of Southern History, vol. 68, no 2, , p. 333–374 (ISSN0022-4642, DOI10.2307/3069935, lire en ligne, consulté le )
jstor.org
(en-US) Vera Briscoe, « The Poll Tax as a Voting Prerequisite », The Bulletin of the National Tax Association, vol. 29, no 3, , p. 66–75 (ISSN2327-8706, lire en ligne, consulté le )
(en-US) Frank B. Williams, « The Poll Tax as a Suffrage Requirement in the South, 1870-1901 », The Journal of Southern History, vol. 18, no 4, , p. 469–496 (ISSN0022-4642, DOI10.2307/2955220, lire en ligne, consulté le )
(en-US) Sarah Wilkerson-Freeman, « The Second Battle for Woman Suffrage: Alabama White Women, the Poll Tax, and V. O. Key's Master Narrative of Southern Politics », The Journal of Southern History, vol. 68, no 2, , p. 333–374 (ISSN0022-4642, DOI10.2307/3069935, lire en ligne, consulté le )
(en-US) United States Department of Justice Civil Rights Division Voting Section, « The Voting Rights Act Of 1965 », sur web.archive.org, (consulté le )