U.S. Army officer (U.S. Civil War, Spanish-American War) and legislator (U.S. House of Representatives from Ohio, 1877-1885, 1905-1911). Collection contains correspondence, primarily from 1881-1883, when Keifer was Speaker of the House of Representatives, and two items of miscellany. Incoming letters, mostly from military and political figures, of Susan B. Anthony, James G. Blaine, William Jennings Bryan, Carrie Chapman Catt, James A. Garfield, Marcus A. Hanna, Warren G. Harding, Rutherford B. Hayes, Nicholas Longworth, Whitelaw Reid, Theodore Roosevelt, Franklin D. Roosevelt, John Sherman, William Tecumseh Sherman, William Howard Taft, Leonard Wood, and others.