The Pinkertons : the detective dynasty that made history / by James D. Horan. Horan, James David, 1914- Pinkerton's National Detective Agency. 923.573 19 PIH Includes index. Bibliography: p. 551-560. London : Robert Hale, 1970, c1967. 1970, c1967. 1970 Text xii, 564 p. : eng