Question: Who is older, Stewart O'Nan or Terry Southern?

Context articles: The Magic Christian (film)
The Magic Christian (novel)
Red-Dirt Marijuana and Other Tastes
Terry Southern
Nile Southern
Candy (Southern and Hoffenberg novel)
The Loved One (film)
Stewart O'Nan
Gotham Independent Film Awards 1994
Meall nan Tarmachan

The Magic Christian is a 1969 British satirical black comedy film directed by Joseph McGrath and starring Peter Sellers and Ringo Starr, with appearances by John Cleese, Graham Chapman, Raquel Welch, Spike Milligan, Christopher Lee, Richard Attenborough and Roman Polanski.
 It was loosely adapted from the 1959 comic novel of the same name by American author Terry Southern, who co-wrote the screenplay adaptation with McGrath.
The Magic Christian is a 1959 comic novel by American author Terry Southern (1924–1995) about an odd billionaire who spends most of his time playing elaborate practical jokes on people.
 It is known for bringing Southern to the attention of filmmaker Stanley Kubrick, who had received a copy as a gift from Peter Sellers, and subsequently hired him as co-writer for "Dr. Strangelove" (1964) when Kubrick decided to make that film a black comedy/satire, rather than a straightforward thriller.
 In 1969, "The Magic Christian" was made into a film starring Peter Sellers and Ringo Starr; the story was much altered and relocated from New York City to London.
Red-Dirt Marijuana and Other Tastes (ISBN  ) is a collection of essays and short fiction works by satirical novelist and screenwriter Terry Southern, which was first published in 1967.
Terry Southern (May 1, 1924 – October 29, 1995) was an American novelist, essayist, screenwriter, and university lecturer, noted for his distinctive satirical style.
 Part of the Paris postwar literary movement in the 1950s and a companion to Beat writers in Greenwich Village, Southern was also at the center of Swinging London in the 1960s and helped to change the style and substance of American films in the 1970s.
 In the 1980s he wrote for "Saturday Night Live" and lectured on screenwriting at several universities in New York.
Nile Southern (born December 29, 1960), is an American filmmaker and writer.
 He is noted for his book "The Candy Men", a "biography of a book," about the writing and publishing of the comic sex novel "Candy", by Terry Southern and Mason Hoffenberg.
 He is the son of writer Terry Southern and literary editor Carol Southern.
Candy is a 1958 novel written by Maxwell Kenton, the pseudonym of Terry Southern and Mason Hoffenberg, who wrote it in collaboration for the "dirty book" publisher Olympia Press, which published the novel as part of its "Traveller's Companion" series.
 According to Hoffenberg, Terry Southern and I wrote "Candy" for the money.
 Olympia Press, $500 flat.
 He was in Switzerland, I was in Paris.
 We did it in letters.
 But when it got to be a big deal in the States, everybody was taking it seriously.
 Do you remember what kind of shit people were saying?
 One guy wrote a review about how "Candy" was a satire on "Candide".
 So right away I went back and reread Voltaire to see if he was right.
 That's what happens to you.
 It's as if you vomit in the gutter and everybody starts saying it's the greatest new art form, so you go back to see it, and, by God, you have to agree.
The Loved One is a 1965 black and white comedy film about the funeral business in Los Angeles, which is based on "The Loved One: An Anglo-American Tragedy" (1948), a short satirical novel by Evelyn Waugh.
 It was directed by British filmmaker Tony Richardson and the screenplay—which also drew on Jessica Mitford's book "The American Way of Death" (1963)—was written by noted American satirical novelist Terry Southern and British author Christopher Isherwood.
Stewart O'Nan (born February 4, 1961) is an American novelist.
The 4th Annual Gotham Independent Film Awards were held on September 20, 1994 and were hosted by Eric Bogosian for the second time.
 At the ceremony, Sam Cohn was honoured with a Career Tribute with Joel and Ethan Coen, Sigourney Weaver, Terry Southern and Howard Shore receiving the other individual awards.
Meall nan Tarmachan is a mountain in the Southern Highlands of Scotland near Killin just west of Ben Lawers.
 It is often climbed as part of the Tarmachan ridge, the other peaks of which are Meall Garbh (1026 m), Beinn nan Eachan (1000 m) and Creag na Caillach (914 m); these three peaks are Tops rather than Munros, and lie to the south-west of Meall nan Tarmachan.