Question: Who is the co-founder of the magazine in which many of Poe Ballantine's essays appear?

Context articles: Beyond the Golden Stair
Jef Murray
David Thorne (writer)
Bill Ballantine (illustrator)
The Sorcerer's Ship
The Sun (magazine)
Poe Ballantine
Terry Castle
Lia Purpura
Angela Morales

Beyond the Golden Stair is a fantasy novel written by American writer Hannes Bok.
 It was first published as the short story "The Blue Flamingo" in the January 1948 issue of the magazine "Startling Stories"; later the story was extensively revised and expanded by the author into novel form.
 The novel version was first published in book form (posthumously) in paperback by Ballantine Books as the twenty-third volume of the Ballantine Adult Fantasy series in November, 1970.
 The Ballantine edition includes an introduction by American author Lin Carter.
Jeffrey Patrick Murray (March 17, 1960-August 3, 2015) was an American fantasy artist and author best known for his illustrations of works by J.R.R. Tolkien and C.S. Lewis.
 His paintings, illustrations, stories, poems, and essays appear regularly in Tolkien and Inklings-oriented
David R. Thorne (born 23 February 1972) is an Australian humourist, satirist, and Internet personality.
 His work has been featured on the BBC, the "Late Show with David Letterman", "The Ellen DeGeneres Show", and "Late Night with Conan O'Brien".
 Thorne gained public recognition in late 2008 for an email exchange in which he attempts to pay an overdue bill with a drawing of a seven-legged spider.
 The exchange spread virally via email and social networking sites, leading to a surge of visitors to his website 27b/6 (27bslash6).
 27b/6 features a collection of humorous emails and articles from Thorne's life.
 These and additional essays appear in Thorne's book, "The Internet is a Playground".
 Published by Penguin Group and released on 28 April 2011, the book debuted at number four on the "New York Times" Best Seller list.
Bill Ballantine (1910–1999) was a writer and illustrator of circus subjects, as well as a professional clown.
 A prolific writer, Ballantine contributed circus and travel essays to major magazines.
 His many stories of circus life appeared in "Collier's," "Holiday," "Harper’s Bazaar," "Saturday Evening Post," "True," "Saga", and "Seventeen."
 Ballantine also authored ten books, including "Wild Tigers and Tame Fleas", "Horses and Their Bosses", and "Clown Alley", which chronicles his years as dean of the Ringling Bros. and Barnum & Bailey Clown College.
 Over his long career as a writer/illustrator, he published nearly 100 articles on circus and travel and regularly illustrated "True" magazine's backpage feature “Strange but True” with his graceful and warmly humorous pen-and-ink line drawings.
The Sorcerer's Ship is a fantasy novel by Hannes Bok.
 It was first published in the December 1942 issue of the magazine "Unknown", and was first published in book form in paperback by Ballantine Books as the ninth volume of the Ballantine Adult Fantasy series in December 1969.
 The Ballantine edition includes an introduction by Lin Carter.
 The novel has also been published in translation in Polish and Russian.
 Like much of Bok's fiction, it is the story of a traveler "from our world who found [himself] in colourful, magic lands that are far more attractive than our own".
The Sun is a monthly American magazine publishing essays, interviews, short stories, poems, and photography.
 The overall goal for the publication, as stated by editor and co-founder, Sy Safransky, is to create a feeling of connection between contributors and readers.
Poe Ballantine (born 1955 in Denver, Colorado) is a fiction and nonfiction writer known for his novels and especially his essays, many of which appear in "The Sun".
 His second novel, "Decline of the Lawrence Welk Empire", won "Foreword Magazine"’s Book of the Year.
 The odd jobs, eccentric characters, boarding houses, buses, and beer that populate Ballantine’s work often draw comparisons to the life and work of Charles Bukowski and Jack Kerouac.
Terry Castle (born October 18, 1953) is an American literary scholar.
 Once described by Susan Sontag as "the most expressive, most enlightening literary critic at large today," she has published eight books, including the anthology "The Literature of Lesbianism", which won the Lambda Literary Editor's Choice Award.
 She writes on topics ranging from 18th-century ghost stories to World War I era lesbianism to the so-called "photographic fringe."
 Her essays appear regularly in the "London Review of Books," the "Atlantic," and the "New Republic."
Lia Purpura (born February 22, 1964, Mineola, New York) is an American poet, writer and educator.
 She is the author of four collections of poems ("King Baby", "Stone Sky Lifting", "The Brighter the Veil", "It Shouldn't Have Been Beautiful"), three collections of essays ("Rough Likeness", "On Looking", and "Increase") and one collection of translations ("Poems of Grzegorz Musial: Berliner Tagebuch and Taste of Ash").
 Her poems and essays appear in "AGNI", "The Antioch Review", "DoubleTake", "FIELD", "The Georgia Review", "The Iowa Review", "Orion Magazine", "The New Republic", "The New Yorker", "The Paris Review", "Parnassus: Poetry in Review", "Ploughshares".
 "Southern Review", and many other magazines.
Angela Morales (born 1966, Los Angeles, CA) is a Mexican-American essayist, writer, and educator.
 She is the author of "", published by the University of New Mexico Press, 2016.
 Her essays appear in "River Teeth", "The Baltimore Review", "The Los Angeles Review", "The Harvard Review", "The Southern Review", "The Chattahoochee Review", "The Pinch", "Hobart", "Under the Sun", "The Indianola Review", and "1966: A Journal of Creative Nonfiction," and other magazines.