Question: Do John Gunther and Richard Wilbur have the same nationality?

Context paragraphs:
Inside U.S.A.: Inside U.S.A. is a musical revue by Arthur Schwartz (music) and Howard Dietz (lyrics).  It was loosely based on the book "Inside U.S.A." by John Gunther.  Sketches were written by Arnold M. Auerbach, Moss Hart, and Arnold B. Horwitt.

Crazyhorse (magazine): Crazyhorse is an American magazine that publishes fiction, poetry, and essays.  Since 1960, "Crazyhorse" has published many of the finest voices in literature, including John Updike, Raymond Carver, Jorie Graham, John Ashbery, Robert Bly, Ha Jin, Lee K. Abbott, Philip F. Deaver, Stacie Cassarino, W. P. Kinsella, Richard Wilbur, James Wright, Carolyn Forché, Charles Simic, Charles Wright, Billy Collins, Galway Kinnell, James Tate, and Franz Wright.

Death Be Not Proud (book): 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.

Citadel (U.S. Senate): Citadel (sub-title: The Story of the U.S. Senate) is a study of the United States Senate by the journalist William S. White.  Written in 1956, the book anticipates the great changes afoot in post-war Washington.  John Gunther in "Inside U.S.A." had put the problem of Southern intractability over civil rights reform in perspective, but White was the first to make public how skilled the Southern Senators were at utilising every procedural mechanism the chamber had to offer.

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.  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.

Fall into the Open: Fall Into The Open is the first studio album from American Recording Artist, Cris Gunther, released in 2007 on iTunes, CD Baby & Amazon.com.  Executived Produced by Cris Gunther, Terry Gunther, and Mary Ann Marchasella.  Produced by Tim K (Les Nubians, Tiny Hearts, Russell Taylor, Collette, and Esthero), and Fab Dupont (Shakira, Jennifer Lopez).  Written by Cris Gunther, Mic Murphy (The System), Tim K, Fab Dupont, and Richard Lynch.  The album features Mic Murphy (The System) on the track, "Black Doll", and, Verve/Universal Recording Artist, Lucy Woodward, on the tracks, "Gotta Give", "Sacred Sexuality", and the Kylie Minogue cover, "Turn It Into Love".  The album was mixed by Fab Dupont.  And, the track, "The Heat", was featured in a Songwriter's Hall Of Fame Showcase in New York City in 2002, which was featured in Billboard Magazine.  There are ten songs on this recording.

Candide (operetta): Candide is an operetta with music composed by Leonard Bernstein, based on the 1759 novella of the same name by Voltaire.  The operetta was first performed in 1956 with a libretto by Lillian Hellman; but since 1974 it has been generally performed with a book by Hugh Wheeler which is more faithful to Voltaire's novel.  The primary lyricist was the poet Richard Wilbur.  Other contributors to the text were John Latouche, Dorothy Parker, Lillian Hellman, Stephen Sondheim, John Mauceri, John Wells, and Bernstein himself.  Maurice Peress and Hershy Kay contributed orchestrations.  Although unsuccessful at its premiere, "Candide" has now overcome the unenthusiastic reaction of early audiences and critics and achieved enormous popularity.  It is very popular among major music schools as a student show because of the quality of its music and the opportunities it offers to student singers.

Richard Wilbur Award: The Richard Wilbur Award is named in honor of the American poet Richard Wilbur and was established at the University of Evansville under the direction of William Baer.  The competition welcomes submissions of unpublished, original poetry collections, and public domain or permission-secured translations may comprise up to one-third of the manuscript.  This biennial competition (awarded in even-numbered years) is open to all American poets, and the winning manuscript is published by the University of Evansville Press.

Richard Wilbur: Richard Purdy Wilbur (born March 1, 1921) is an American poet and literary translator.  He is considered by many to be one of the greatest of the 20th century.  Working primarily in traditional forms, his work is marked by its wit, charm, and gentlemanly elegance.  Wilbur was appointed the second Poet Laureate Consultant in Poetry to the Library of Congress in 1987, and twice received the Pulitzer Prize for Poetry, in 1957 and again in 1989.

Jan Masaryk: Jan Garrigue Masaryk (14 September 1886 – 10 March 1948) was a Czech diplomat and politician and Foreign Minister of Czechoslovakia from 1940 to 1948.  American journalist John Gunther described Masaryk as "a brave, honest, turbulent, and impulsive man".

Supporting paragraphs: John Gunther Richard Wilbur
Answer: yes