question: Are John Gunther and John Dufresne American?
answer: yes
context: Title: John Dufresne
  Passage: John Dufresne (born January 30, 1948) is an American author of French Canadian descent born in Worcester, Massachusetts.  He graduated from Worcester State College in 1970 and the University of Arkansas in 1984.   He is a professor in the Master of Fine Arts Creative Writing program of the English Department at Florida International University.   In 2012, he won a John Simon Guggenheim Memorial Foundation Fellowship for his work.
  Title: John Gunther
  Passage: John Gunther (August 30, 1901 – May 29, 1970) was an American journalist and author whose success came primarily through a series of popular sociopolitical works known as the "Inside" books (1936–1972), including the best-selling "Inside U.S.A." in 1947.  He is best known today for the memoir "Death Be Not Proud" about the death of his beloved teenage son, Johnny Gunther, from a brain tumor.
  Title: Henry Gunther
  Passage: Henry Nicholas John Gunther (June 6, 1895 – November 11, 1918) was an American soldier and the last soldier of any of the belligerents to be killed during World War I.  He was killed at 10:59 a.m., one minute before the Armistice was to take effect at 11 a.m.
  Title: Death Be Not Proud (book)
  Passage: Death Be Not Proud is a 1949 memoir by American author John Gunther, taking its name from by John Donne.  The story was portrayed in a 1975 TV movie starring Robby Benson as Johnny Gunther and Arthur Hill as John Gunther.
citations: John Gunther John Dufresne