Question: In what year did Dorothy Vaughan, one of the women featured in the 2016 non-fiction book, Hidden Figures, become acting supervisor of the West Area Computers?
Context: Truevine: Two Brothers, a Kidnapping, and a Mother's Quest: A True Story of the Jim Crow South is a 2016 non-fiction book by American author Beth Macy.  The book tells the story of George and Willie Muse, two African-American brothers that were allegedly kidnapped and forced to perform as sideshow attractions because they were albinos.  "Truevine" was released on October 18, 2016 through Little, Brown and Company. "Hidden Figures" is a 2016 American biographical comedy-drama film directed by Theodore Melfi, and written by Melfi and Allison Schroeder, who adapted the screenplay from the non-fiction book "Hidden Figures" by Margot Lee Shetterly.  The film's plot focuses on female African-American mathematicians at NASA, specifically Katherine Johnson (played by Taraji P. Henson), who calculated flight trajectories for Project Mercury and the 1969 Apollo 11 flight to the Moon, Dorothy Vaughan (Octavia Spencer), and engineer Mary Jackson (Janelle Monáe).  Kevin Costner plays the supporting role of Al Harrison and Jim Parsons plays the role of Paul Stafford.  20th Century Fox gave the film a limited release from December 25, 2016, before a wide release on January 6, 2017. Margot Lee Shetterly (born 1969) is an American nonfiction writer who has also worked in investment banking and media startups.  Her first book, "Hidden Figures: The Story of the African-American Women Who Helped Win the Space Race" (2016), is about African-American women mathematicians working at NASA who were instrumental to the success of the United States space program.  She sold the movie rights while still working on the book, and it was adapted as a feature film of the same name, "Hidden Figures" (2016).  For several years Shetterly and her husband lived and worked in Mexico, where they founded and published "Inside Mexico," a magazine directed to English-speaking expats. Hidden Figures: The American Dream and the Untold Story of the Black Women Who Helped Win the Space Race is a 2016 non-fiction book written by Margot Lee Shetterly.  The biographical text follows the lives of Human Computers such as Katherine Johnson, Dorothy Vaughan, and Mary Jackson, three mathematicians Octavia Lenora Spencer (born May 25, 1972) is an American actress and author.  She made her film debut in the 1996 drama film "A Time to Kill".  Her breakthrough came in 2011, when she starred as Minny Jackson in the period drama film "The Help", for which she won the Academy Award, Golden Globe, SAG, BAFTA, and Critics' Choice Movie Award for Best Supporting Actress.  She had a critically acclaimed performance in Ryan Coogler's drama "Fruitvale Station" (2013), for which she received the National Board of Review Award for Best Supporting Actress.  Spencer has received acclaim for her work in the films "Smashed" (2012), "Snowpiercer" (2013), "Get on Up" (2014), "The Divergent Series" (2015-2016), "Zootopia" (2016) and "The Shape of Water" (2017).  In 2017, she received Academy Award, Golden Globe, and SAG nominations for Best Supporting Actress for her performance as mathematician Dorothy Vaughan in the drama "Hidden Figures". We Are Afghan Women: Voices of Hope is a 2016 non-fiction book about women's rights in Afghanistan.  It was published by the George W. Bush Institute at the George W. Bush Presidential Center, with an introduction by former First Lady Laura Bush. The West Area Computing Unit (West Area Computers) was an all-African American group of female mathematicians who worked as human computers at the Langley Research Center of NACA (predecessor of NASA) from 1943 through 1958.  The group, a subset of the hundreds of female mathematicians who began careers in aeronautical research during World War II, was originally subject to Virginia's Jim Crow laws, requiring them to use segregated bathrooms and cafeterias. Dorothy Johnson Vaughan (September 20, 1910 – November 10, 2008) was an African American mathematician and human computer who worked for the National Advisory Committee for Aeronautics (NACA), and NASA, at Langley Research Center in Hampton, Virginia.  In 1949, she became acting supervisor of the West Area Computers, the first African-American woman to supervise a group of staff at the center. Sudie Lawrence Williams (November 11, 1872–July 21, 1940) was a music educator in the public schools of Dallas, Texas.  She was born in Bellville, Texas to Dr. and Mrs. Otis Laurence Williams.  She began teaching in the Dallas schools in 1894, became assistant supervisor of music for the schools in 1910, acting supervisor in 1913 (the year the Dallas schools acquired their first phonograph), and supervisor in 1914. Hidden Figures is a 2016 American biographical drama film directed by Theodore Melfi and written by Melfi and Allison Schroeder, based on the non-fiction book of the same name by Margot Lee Shetterly about black female mathematicians who worked at the National Aeronautics and Space Administration (NASA) during the Space Race.  The film stars Taraji P. Henson as Katherine Johnson, a mathematician who calculated flight trajectories for Project Mercury and other missions.  The film also features Octavia Spencer as NASA supervisor Dorothy Vaughan and Janelle Monáe as NASA engineer Mary Jackson, with Kevin Costner, Kirsten Dunst, Jim Parsons, Glen Powell, and Mahershala Ali in supporting roles.
Answer: 1949