These biographies emphasize the wide diversity of style, temperament, activity, and occupation of frontier soldiers. Included are William Clark, Stephen H. Long, William S. Harney, James Henry Carleton, Philip H. Sheridan, George Armstrong Custer, George Crook, John G. Bourke, Benjamin H. Grierson, Ranald S. Mackenzie, William B. Hazen, Nelson A. Miles, Frank D. Baldwin, and Charles King.
