Thomas A. Bailey, "Was the Presidential Election of 1900 A Mandate on Imperialism?" Mississippi Valley Historical Review, Vol. 24, No. 1 (Jun., 1937), pp. 43-52 in JSTOR
Robert L. Beisner, Twelve against Empire: The Anti-Imperialists, 1898—1900 (1968)
Fred H. Harrington, "The Anti-Imperialist Movement in the United States, 1898-1900," Mississippi Valley Historical Review, Vol. 22, No. 2 (Sep., 1935), pp. 211-230 in JSTOR
Fred Harvey Harrington, "Literary Aspects of American Anti-Imperialism 1898-1902," New England Quarterly, Vol. 10, No. 4 (Dec., 1937), pp. 650-667 in JSTOR
William E. Leuchtenburg, "Progressivism and Imperialism: The Progressive Movement and American Foreign Policy, 1898-1916," Mississippi Valley Historical Review, Vol. 39, No. 3 (Dec., 1952), pp. 483-504 in JSTOR
Julius Pratt, Expansionists of 1898: The Acquisition of Hawaii and the Spanish Islands (1936) pp 266—78
E. Berkeley Tompkins, Anti-Imperialism in the United States: The Great Debate, 1890—1920. (1970)
Mark Twain. Jim Zwick, ed. Mark Twain's Weapons of Satire: Anti-Imperialist Writings on the Philippine-American War. (Syracuse University Press: July 1, 1992) ISBN 0-8156-0268-5
Richard E. Welch, Jr., Response to Imperialism: The United States and the Philippine-American War, 1899—1902 (1978)
William George Whittaker, "Samuel Gompers, Anti-Imperialist," Pacific Historical Review, Vol. 38, No. 4 (Nov., 1969), pp. 429-445 in JSTOR
Jim Zwick, Friends of the Filipino People Bulletin
Jim Zwick, Militarism and Repression in the Philippines
Jim Zwick, Prodigally Endowed with Sympathy for the Cause: Mark Twain's Involvement with the Anti-Imperialist League (Ephemera Society of America (January 1, 1992) ASIN B0006R8RJ8
^Field, James A., Jr. (June 1978). “American Imperialism: The Worst Chapter in Almost Any Book”. The American Historical Review83 (3): 644–668. doi:10.2307/1861842. JSTOR1861842.