Question: Were Arturo Uslar Pietri and Brian O'Nolan both writers?

Context articles: Tumbling Tumbleweeds
J. N. Williamson
Brian Johnson (pitcher)
Primer Plano (television show)
Arturo Uslar Pietri
Nezahualcóyotl Award
Christopher Nolan (author)
Las lanzas coloradas
Valores (TV program)
Brian O'Nolan

"Tumbling Tumbleweeds" is a song composed by Bob Nolan.
 Although one of the most famous songs associated with the Sons of the Pioneers, the song was composed by Nolan in the 1930s, while working as a caddy and living in Los Angeles.
 Originally titled "Tumbling Tumble Leaves", the song was reworked into the title "Tumbling Tumbleweeds" and into fame with the 1935 Gene Autry film of the same name.
 Members of the Western Writers of America chose it as one of the Top 100 Western songs of all time.
Gerald "Jerry" Neal Williamson (April 17, 1932 - December 8, 2005) was an American horror writer and editor known under the name J. N. Williamson.
 Born in Indianapolis, Indiana he graduated from Shortridge High School.
 He studied journalism at Butler University.
 He published his first novel in 1979 and went on to publish more than 40 novels and 150 short stories.
 In 2003 he received a lifetime achievement award from the Horror Writers of America.
 He edited the critically acclaimed "How to Write Tales of Horror, Fantasy & Science Fiction (1987)" which covered the themes of such writing and cited the writings of such writers as Robert Bloch, Lee Prosser, Richard Matheson, Ray Bradbury, H. P. Lovecraft, August Derleth, William F. Nolan, and Stephen King.
 Many important writers in the genre contributed to the book.
 Williamson edited the popular anthology series, "Masques".
 Some of his novels include "The Ritual (1979)", "Playmates (1982)", "Noonspell (1991)", "The Haunt (1999)", among others.
Christopher Brian Johnson (born December 7, 1990) is an American professional baseball pitcher for the Boston Red Sox of Major League Baseball (MLB).
 Johnson was part of the No. 1 recruiting class by Baseball America at the University of Florida and was named a freshman All-American by "Baseball America", Yahoo! Sports, National Collegiate Baseball Writers Association, and Louisville Slugger in 2010.
 Johnson also played for the collegiate national Team USA baseball squad in the summer of 2010.
 Johnson was one of only two freshmen in the entire country, the other being Gator teammate Nolan Fontana, to play for Team USA.
Primer Plano was a Venezuelan television talk show seen on Radio Caracas Televisión (RCTV) and was hosted by Marcel Granier, the current general director of RCTV and president of Empresas 1BC, the parent company of RCTV.
 The show debuted on 10 November 1976 with an interview of Diego Arria Salicetti, then governor of Caracas and has aired on-and-off since then.
 Primer Plano's most famous guest was current Venezuelan president Hugo Chávez in 1998.
 Other important guest included Arturo Uslar Pietri, Henrique Salas Römer, Henrique Salas Feo, Irene Sáez, Valentina Quintero, and Andres Velázquez to name a few The latest episode of Primer Plano took place on 30 November 2006 with an interview of Manuel Rosales, the current governor of Zulia and the then-opposition presidential candidate for the 2006 Venezuelan presidential elections.
Arturo Uslar Pietri (16 May 1906 in Caracas – 26 February 2001) was a Venezuelan intellectual, lawyer, journalist, writer, television producer and politician.
The Nezahualcóyotl Award of Literature in Indigenous Languages (Premio Nezahualcóyotl de Literatura en Lenguas Indígenas) is a Mexican literary prize given to writers who create works in indigenous languages.
 The award was created in 1993.
 Arturo Arias of the University of Texas at Austin calls the award the "most prestigious literary award in Mexico and Latin America for indigenous writers."
 The prize has been awarded biennially since 2000 and includes a cash prize and a diploma.
Christopher Nolan (6 September 1965 – 20 February 2009) was an Irish poet and author, son of Joseph and Bernadette Nolan.
 He grew up in Mullingar, Ireland, but later moved to Dublin to attend college.
 He was educated at the Central Remedial Clinic School, Mount Temple Comprehensive School and at Trinity College, Dublin.
 His first book was published when he was fifteen.
 He won the Whitbread Book Award for his autobiography in 1988.
 He was also awarded an Honorary Doctorate of Letters in the UK, the medal of excellence from the United Nations Society of Writers, and a Person of the Year award in Ireland.
Las lanzas coloradas is a 1931 Venezuelan novel by Arturo Uslar Pietri.
Valores ("Values") is a Venezuelan cultural TV program produced from July 10, 2006, until 2008, transmitted by Vale TV, and hosted by Venezuelan writer and Literary critic Oscar Sambrano Urdaneta, the main theme of this space is the learning of Venezuelan culture in all its dimensions.
 Was named in memory of Venezuelan writer Arturo Uslar Pietri and his TV program "Valores Humanos" (Human Values).
Brian O'Nolan (Irish: "Brian Ó Nualláin" ; 5 October 1911 – 1 April 1966) was an Irish novelist, playwright and satirist, considered a major figure in twentieth century Irish literature.
 Born in Strabane, County Tyrone, he is regarded as a key figure in postmodern literature.
 His English language novels, such as "At Swim-Two-Birds", and "The Third Policeman", were written under the "pen name" Flann O'Brien.
 His many satirical columns in "The Irish Times" and an Irish language novel "An Béal Bocht" were written under the name Myles na gCopaleen.