 He was also a successful author, writing biographies of politician Al Smith and athletes Lou Gehrig and John McGraw, as well as histories of the New York Yankees, New York Giants and Brooklyn Dodgers.Graham's writing style was notable for his use of lengthy passages of "unrelieved dialogue" in developing portraits of the persons about whom he wrote.Graham was posthumously inducted into the "writers wing" of the National Baseball Hall of Fame and Museum in 1972.