Albert J. Beveridge, The Russian Advance (New York & London: Harper, 1903);

John Burroughs, Camping and Tramping with Roosevelt (Boston & New York: Houghton Mifflin, 1907);

John H. Clifford and Marion M. Miller, eds., The Works of Abraham Lincoln, 4 volumes, with introductions and articles by Theodore Roosevelt (New York: Newton & Cartwright, 1908);

Oscar King Davis, William Howard Toft, The Man of the Hour (Philadelphia: P. W. Ziegler, 1908);

Marshall Everett, Complete Life of William McKinley and Story of His Assassination (Cleveland: N. G. Hamilton, 1901);

Samuel Fallows, ed., Life of William McKinley, Our Martyred President (Chicago: Regan Printing, 1901);

William Bayard Hale, A Week in the White House with Theodore Roosevelt (New York: Putnam, 1908);

Murat Halstead, The Illustrious Life of William McKinley, Our Martyred President...