Question: When was the writer who wrote the book that The Nutty Professor was based on born?

Context articles: Ha Nguyen
David Sheffield
Stella Stevens
The Nutty Professor (2008 film)
Tom Shadyac
Jamal Mixon
Barry W. Blaustein
Robert Louis Stevenson
Bill Richmond (writer)
Jada Pinkett Smith

Ha Nguyen (born June 20, 1955 in Saigon, Vietnam - died 2014) was a Vietnamese American costume designer known for her work on "The Nutty Professor", J.J. Abrams' "Super 8", and "The Mask" for which she was nominated for a Saturn Award for Best Costume in 1994.
David Sheffield (born 1948) is an American comedy writer best known for his writing on "Saturday Night Live" and the screenplays for "Coming to America" and "The Nutty Professor" all written in collaboration with Barry W. Blaustein.
Stella Stevens (born Estelle Eggleston; October 1, 1938) is an American film, television, and stage actress.
 She began her acting career in 1959 and starred in such popular films as "Girls!
 Girls!
 Girls!
" (1962), "The Nutty Professor" (1963), "The Courtship of Eddie's Father" (1963), "The Silencers" (1966), "Where Angels Go, Trouble Follows" (1968), "The Ballad of Cable Hogue" (1970) and "The Poseidon Adventure" (1972).
The Nutty Professor (also known as The Nutty Professor 2: Facing the Fear) is a 2008 American-Canadian computer-animated comedy sequel to the 1963 Jerry Lewis comedy of the same name and based on the story "Strange Case of Dr Jekyll and Mr Hyde" by Robert Louis Stevenson, produced by Rainmaker Entertainment and The Weinstein Company and distributed by Genius Products.
 Lewis reprises his role of Julius Kelp and produces the film.
 Drake Bell plays the voice of Harold Kelp, Julius's grandson.
Thomas Peter "Tom" Shadyac (born December 11, 1958) is an American Director, screenwriter, producer and author.
 Shadyac, who was the youngest joke-writer ever for comedian Bob Hope, is widely known for writing and directing the comedy films "", "The Nutty Professor", "Liar Liar", and "Bruce Almighty".
 In 2010, Shadyac departed from comedic work to write, direct, and narrate the documentary film "I Am", in which he explores his abandonment of a materialistic lifestyle following a bicycle accident three years earlier.
Jamal Mixon (born June 17, 1983) is an American actor.
 He is best known for his role as Ernie Klump, Jr. in the film "The Nutty Professor", and its sequel, "".
 He is the younger brother of actor Jerod Mixon.
Barry W. Blaustein is an American comedy writer best known for his writing on "Saturday Night Live" and "What's Alan Watching?
" and the screenplays for "Coming to America" and "The Nutty Professor" all written in collaboration with David Sheffield.
Robert Louis Balfour Stevenson (13 November 1850 – 3 December 1894) was a Scottish novelist, poet, essayist, and travel writer.
 His most famous works are "Treasure Island", "Kidnapped", "Strange Case of Dr Jekyll and Mr Hyde," and "A Child's Garden of Verses".
William E. Richmond (December 19, 1921 – June 4, 2016) was an American film and television comedy writer and producer, as well as a musician, actor and composer.
 He co-wrote the screenplays to numerous popular films that starred Jerry Lewis.
 These films included "The Nutty Professor", "The Errand Boy" and "The Ladies Man".
 He also made cameo appearances in some of Lewis' films as well, such as a piano player in "The Patsy".
 Later in his career he wrote and/or produced for numerous television shows, including "Laugh-in", "Walt Disney's Wonderful World of Color", "The Carol Burnett Show", "I Dream of Jeannie", "Welcome Back Kotter", "Three's Company", "The John Larroquette Show", "Wizards and Warriors", "All in the Family", "Blossom" and "Kate & Allie".
Jada Koren Pinkett-Smith ( ; née Pinkett; born September 18, 1971) is an American actress, dancer, singer-songwriter, and businesswoman.
 She began her career in 1990, when she made a guest appearance in the short-lived sitcom "True Colors".
 She starred in "A Different World", produced by Bill Cosby, and she featured opposite Eddie Murphy in "The Nutty Professor" (1996).
 She starred in dramatic films such as "Menace II Society" (1993) and "Set It Off" (1996).
 She has appeared in more than 20 films in a variety of genres, including "Scream 2", "Ali", "The Matrix Reloaded", "The Matrix Revolutions", "Madagascar", "", and "".