New York: Boni & Liveright, (1923). Hardcover first edition - Brief biographies of Jessie James, P.T. Barnum, Admiral Dewey, Frances Willard, Brigham Young, James J. Hill and Mark Hanna. The title comes from Theodore Roosevelt's "The Strenuous Life" in which he mentions those "who predominantly and distinctly embody all that is most American in the American character." Frontispiece and 8 insterted glossy plates. Bibliographies at the end of each section. 370 pp.