Paul George Vincent O'Shaughnessy Horgan (August 1, 1903 – March 8, 1995) was an American writer of historical fiction and non-fiction who mainly wrote about the Southwestern United States. He was the recipient of two Pulitzer Prizes for History. Historian David McCullough wrote of Horgan in 1989: "With the exception of Wallace Stegner, no living American has so distinguished himself in both fiction and history." Source: Wikipedia (en)