Question: Are John Gunther and John Dufresne American?
Sentence (from "John Gunther"): 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.
Relevant evidence: Yes