«Hannibal Hamlin». Encyclopædia Britannica. 1º de julho de 2019. Consultado em 18 de julho de 2019
jstor.org
Speiser, Matt (2006). «The Ticket's Other Half: How and Why Andrew Johnson Received the 1864 Vice Presidential Nomination». Tennessee Historical Quarterly. 65 (1): 42–69. JSTOR42628582
Harry Draper Hunt (1969). Hannibal Hamlin of Maine, Lincoln's First Vice-President. [S.l.]: Syracuse University Press. ISBN978-0-8156-2142-3. OCLC24587