Question: Are both Henry Grantland Rice and David Guterson American writers?

Context paragraphs:
1945 College Football All-America Team: The 1945 College Football All-America team is composed of college football players who were selected as All-Americans by various organizations and writers that chose College Football All-America Teams in 1945.  The nine selectors recognized by the NCAA as "official" for the 1945 season are (1) "Collier's Weekly", as selected by Grantland Rice, (2) the Associated Press, (3) the United Press, (4) the All-America Board, (5) the American Football Coaches Association (AFCA), (6) the Football Writers Association of America (FWAA), (7) the International News Service (INS), (8) "Look" magazine, (9) the Newspaper Enterprise Association (NEA) and (10) the "Sporting News".

FWAA-NFF Grantland Rice Super 16 Poll: The FWAA-NFF Grantland Rice Super 16 poll is a weekly ranking of the top 16 college football teams in the NCAA Football Bowl Subdivision beginning with the 2014 season.  It is named in part for sports writer Grantland Rice.  The 36 poll voters include 26 members of the Football Writers Association of America, with the remaining ten voters each coming from the National Football Foundation or College Football Hall of Fame.

Football Writers Association of America: The Football Writers Association of America (FWAA) is one of the organizations whose College Football All-America Team is recognized by the NCAA.  The organization also selects the Eddie Robinson Coach of the Year, the Bronko Nagurski Trophy winner, the Outland Trophy winner, the Grantland Rice Trophy winner, a freshman All-America team, and weekly defensive player of the week, as well as developing scholarship programs and surveys for better working conditions.  Since 1954, the association has awarded the Grantland Rice Trophy to the college football team they choose to be the National Champion.

David Guterson: David Guterson ( ; born May 4, 1956) is an American novelist, short story writer, poet, journalist, and essayist.  He is best known as the author of the book "Snow Falling on Cedars".

Snow Falling on Cedars: Snow Falling on Cedars is a 1994 award-winning novel written by American writer David Guterson.  Guterson, who was a teacher at the time, wrote the book in the early morning hours over a ten-year period.  Because of the success of the novel, however, he quit his job and began to write full-time.

Grantland Rice: Henry Grantland Rice (November 1, 1880 – July 13, 1954) was an early 20th-century American sportswriter known for his elegant prose.  His writing was published in newspapers around the country and broadcast on the radio.

1977 Grantland Rice Bowl: The 1977 Grantland Rice Bowl was an NCAA Division II game following the 1977 season, between the North Dakota State Bison and the Jacksonville State Gamecocks.  The game was played in Anniston, Alabama at Memorial Stadium as the Gamecocks' normal venue – Paul Snow Stadium – was being renovated.  Jacksonville State defensive tackle Jesse Baker was named most valuable defensive player, and his teammate quarterback Bobby Ray Green was named most valuable offensive player.  This was the last playing of the Grantland Rice Bowl, as the NCAA discontinued use of bowl names for the Division II semifinals after 1977.

Grantland Rice Bowl: The Grantland Rice Bowl was an annual college football bowl game from 1964 through 1977, in the NCAA's College Division, for smaller universities and colleges, and later Division II.  The game was named for Grantland Rice, an early 20th century American sportswriter known for his elegant prose, and was originally played in his hometown of Murfreesboro, Tennessee.

1947 College Football All-America Team: The 1947 College Football All-America team is composed of college football players who were selected as All-Americans by various organizations and writers that chose College Football All-America Teams in 1947.  The eight selectors recognized by the NCAA as "official" for the 1947 season are (1) , the American Football Coaches Association (AFCA), (2) the Associated Press (AP), (3) "Collier's Weekly", as selected by Grantland Rice, (4) the Football Writers Association of America (FW), (5) the International News Service (INS), (6) the Newspaper Enterprise Association (NEA), (7) the "Sporting News" (SN), and (8) the United Press (UP).  Other selectors include the Central Press Association (CP) and the Walter Camp Football Foundation (WC).

Grantland: Grantland was a sports and pop-culture blog owned and operated by ESPN.  The blog was started in 2011 by veteran writer and sports journalist Bill Simmons, who remained as editor-in-chief until May 2015.  "Grantland" was named after famed 20th-century sportswriter Grantland Rice (1880–1954).

Supporting paragraphs: Grantland Rice David Guterson
Answer: yes