Complex sentence: Henry Fowles Pringle (August 23,1897--April 7,1958) was an American biographer and journalist, who won the 1932 Pulitzer Prize for Biography or Autobiography for his 1931 biography of Theodore Roosevelt.
Split into simpler sentences: Henry Fowles Pringle (August 23,1897--April 7,1958) was an American biographer and journalist. He won the Pulitzer Prize for Biography or Autobiography for his 1931 biography of Theodore Roosevelt.