Chace, James (2004), 1912: Wilson, Roosevelt, Taft, and Debs: The Election That Changed the Country, ISBN 978-0-7432-0394-4, 323 pp.
Chambers, John W. (1974),  Woodward, C. Vann (ed.), Responses of the Presidents to Charges of Misconduct, New York, New York: Delacorte Press, pp. 207–237, ISBN 0-440-05923-2
Cowan, Geoffrey. Let the People Rule: Theodore Roosevelt and the Birth of the Presidential Primary (WW Norton, 2016).
Gable, John A. The Bull Moose Years (Kennikat Press Corp., 1978) 300pp on Roosevelt.
Gould, Lewis L (2008), Four Hats in the Ring: The 1912 Election and the Birth of Modern American Politics (by a leading scholar), ISBN 978-0-7006-1564-3.
Haverkamp, Michael (2001), "Rossevelt and Taft: How the Republican Vote Split in Ohio in 1912", Ohio History, 110 (1): 121–135, archived from the original on March 5, 2008.
Kohn, Edward P (Spring 2006), "A Necessary Defeat: Theodore Roosevelt and the New York Mayoral Election of 1886", New York History, 87: 205–227.
——— (2006), "Crossing the Rubicon: Theodore Roosevelt, Henry Cabot Lodge, and the 1884 Republican National Convention", Journal of the Gilded Age and Progressive Era, 5 (1): 18–45, doi:10.1017/s1537781400002851, hdl:11693/48372, S2CID 163282993.
