Question: Where was the American visual artist and graphic designer of the Las Vegas landmark in 1959 born?

Context paragraphs:
Davi Cheng: Artist and graphic designer Davi Cheng was born in Hong Kong into a Christian/Protestant extended family.  Her great-grandfather Jan Con Sang, Chas Jan Wann when he was a documented laborer in Territorial Arizona, converted to Christianity in 1896 at the First Congregational Church before he returned to China in 1902 to spread the Gospel.  Davi's grandfather never set foot in the U.S.A. Davi immigrated to the United States with her family under her father's immigrant visa when she was fourteen.  She earned a B.A. in Biological Sciences from U.C. Berkeley with the intention of pursuing a career in the medical field.  Instead she gravitated toward art, making detailed sketches and drawings of wildlife.  After graduating and working in business for a few years, Cheng went back to school to study computer graphic design.  As a visual artist she combines traditional methods of drawing and painting by hand with advanced digital design techniques.  She also works as a graphic designer in corporate and nonprofit contexts.

Betty Willis: Betty Jane Willis (née Whitehead; May 20, 1923 – April 19, 2015) was an American visual artist and graphic designer.  Born in Overton, Nevada, she is best known for having been the designer of the Welcome to Fabulous Las Vegas sign, and has been attributed to being an influencer in defining modern Las Vegas' visual image.

Endi E. Poskovic: Endi Poskovic (born January 29, 1969) is a Bosnian-born American visual artist and printmaker whose graphic work merges visual representation with text, often shifting the reading of the imagery through continuous representation and re-contextualization.  His woodcut prints invoke influences as disparate as early cinema, classic Japanese woodblock prints, devotional pictures, and Eastern European Propaganda poster.  The amalgam of diverse scenarios and visual narratives in Poskovic's work imply accounts from personal and social histories and reference themes of cultural and environmental shifts, migration and alienation that are at once magnificent and tragic.

Cey Adams: Cey Adams (b. New York, 1962) is a visual artist, graphic designer and author.  He was the founding creative director of Def Jam Recordings and is known for his work with Beastie Boys, Public Enemy, LL Cool J, Jay-Z, and Mary J. Blige.  He has been described as "legendary" for his work in hip-hop graphic design.

Welcome to Fabulous Las Vegas sign: The Welcome to Fabulous Las Vegas sign is a Las Vegas landmark funded in May 1959 and erected soon after by Western Neon.  The sign was designed by Betty Willis at the request of Ted Rogich, a local salesman, who sold it to Clark County, Nevada.

Mikael Brandrup: Mikael Brandrup, also known as "KETS," is a Danish visual artist, graphic designer and entrepreneur who currently lives in Los Angeles and was the subject of an in-depth article in the Danish periodical Jyllands-Posten.  Brandrup is internationally known for combining the aesthetics of graffiti, fine art and graphic design in his outdoor and canvas work.  Brandrup was a featured artist at the Scope Art Show at Art Basel in Miami in 2015 and in 2016, appeared on , the biggest talkshow in Denmark.

M S Prakash Babu: M S Prakash Babu (born 3 November 1968) is an Indian film director, screenwriter and visual artist, known for his work in Kannada feature film "Attihannu mattu Kanaja" (Fig Fruit and The Wasps) "which has been officially selected in the Competition and nominated for ‘Tiantan Award’ 2015," "5th Beijing International Film Festival, Trained as a Visual artist from renowned Viswa Bharati University, Santiniketan, West-Bengal, He worked as an illustrator and Graphic designer in Indian National Newspaper The Times of India."

Elaine Lustig Cohen: Elaine Lustig Cohen (March 6, 1927 – October 4, 2016) was an American graphic designer, artist and archivist.  She is best known for her work as a graphic designer during the 1950s and 60s, having created over 150 designs for book covers and museum catalogs.  Her work has played a significant role in the evolution of American modernist graphic design, integrating European avant-garde with experimentation to create a distinct visual vocabulary.  Later continued her career as a fine artist working in a variety of media.  In 2011, she was named an AIGA Medalist for her achievements in graphic design.

Willys de Castro: Willys de Castro (February 16, 1926 – June 5, 1988) was a Brazilian visual artist, poet, graphic designer, industrial designer, stage designer and magazine editor.  De Castro is best known for his "Active object" series and is considered to be a pioneer and founding contributor of the Neo-Concrete Movement.

Jeff Arwadi: Jefray Kurnia "Jeff" Arwadi (born 1974) is a musician, music producer, and graphic designer, a native of Jakarta, Indonesia who now resides in Calgary, Alberta, Canada.  He is mostly known as a former guitarist, vocalist, and record producer for the avant-garde/progressive metal band Kekal.  Professionally, he has made a career as a graphic designer and has worked at various companies for more than a decade.  In the past, he was also known in the music scene for his works as a freelance graphic designer under Soundmind Graphics, and until his 2006 move to Canada, Jeff owned and ran his own home-based recording studio, Vision Studio, in Jakarta.  He also was a staff member of the record label THT Productions.  In addition to his roles in Kekal, he was also the co-founder of progressive metal project Altera Enigma and was involved with bands such as Armageddon Holocaust and Inner Warfare.

Supporting paragraphs: Betty Willis Welcome to Fabulous Las Vegas sign
Answer: Overton, Nevada