"The Republican Party Convention of 1912 and the Role of Herbert S. Hadley in National Politics."Missouri Historical Review 59.4 (1965): 407–423. Taft was willing to compromise with Missouri Governor Herbert S. Hadley as presidential nominee; TR said no.
Harris, Charles H. III; Sadler, Louis R. (2009). The Secret War in El Paso: Mexican Revolutionary Intrigue, 1906–1920. Albuquerque, New Mexico: University of New Mexico Press. ISBN 978-0-8263-4652-0.
Hawley, Joshua David (2008). Theodore Roosevelt: Preacher of Righteousness. New Haven, CT: Yale University Press. ISBN 978-0-300-14514-4.
Hechler, Kenneth W. Insurgency: Personalities and Politics of the Taft Era (1940), on Taft's Republican enemies in 1910.
Hindman, E. James. "The General Arbitration Treaties of William Howard Taft."The Historian 36.1 (1973): 52–65 online.
Korzi, Michael J., "William Howard Taft, the 1908 Election, and the Future of the American Presidency," Congress and the Presidency, 43 (May–August 2016), 227–54.
Lurie, Jonathan (2011). William Howard Taft: Progressive Conservative. Cambridge: Cambridge University Press. ISBN 978-0-521-51421-7.
Manners, William. TR and Will: A Friendship That Split the Republican Party (1969) covers 1910 to 1912.
Mason, Alpheus T. Bureaucracy Convicts Itself: The Ballinger-Pinchot Controversy of 1910 (1941)
Minger, Ralph Eldin (August 1961). "Taft's Missions to Japan: A Study in Personal Diplomacy". 