She lived in Greenwich, Connecticut and died in 2009, aged 88.

Many of her anthologies are ghost stories, but she also compiled anthologies for teens in particular.

https://www.goodreads.com/author/list/810453.Seon_Manley
(reader reviews)

Check out the long review of Baleful Beasts; Great Supernatural Stories Of The Animal Kingdom - the book includes works by Lilian Jackson Braun, Lafcadio Hearn, Edith Wharton, William Hope Hodgson, Arthur Conan Doyle, Ambrose Bierce, Hugh Walpole, Eric
Linklater, Saki, & George Whitley.

https://mcw3cp.wixsite.com/seonmanley
(her site)

To see the covers of her books on ghosts and such, click on "books with Gogo" (her sister).

https://www.google.com/search?q=seon+manley+books&rlz=1CAJMBU_enUS934US934&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiOnuaM24ruAhUzEVkFHe6UBdwQ_AUoAXoECAUQAw&biw=1100&bih=625
(more covers)

WORKS:
WRITINGS BY THE AUTHOR:

Adventures in Making: The Romance of Crafts Around the World, Vanguard, 1959.

Rudyard Kipling, Creative Adventurer, Vanguard, 1965.
Long Island Discovery: An Adventure Into the History, Manners, and Mores of America's Front Porch, Doubleday, 1966.
My Heart's in the Heather (autobiography), Funk & Wagnalls, 1968.
Nathaniel Hawthorne: Captain of Imagination, Vanguard, 1968.
(With husband, Robert Manley) Beachers: Their Lives, Legends, and Lore, Chilton, 1968.
My Heart's in Greenwich Village (autobiography), Funk & Wagnalls, 1969.

(With R. Manley) Islands: Their Lives, Legends, and Lore, Chilton, 1970.
(With Susan Belcher) O Those Extraordinary Women; or, The Joys of Literary Lib, Chilton, 1972.
Dorothy and William Wordsworth: The Heart of a Circle of Friends, Vanguard, 1974.
The Ghost in the Far Garden, and Other Stories, Lothrop, 1977.
(Compiler with Gogo Lewis) Christmas Ghosts: An Anthology, Doubleday (Garden City, NY), 1978.
(Compiler with Lewis) Masters of Shades and Shadows: An Anthology of Great Ghost Stories, Doubleday (Garden City, NY), 1978.
(Compiler and author of introduction with Lewis) Nature's Revenge: Eerie Stories of Revolt Against the Human Race, Lothrop, Lee & Shepard (New York), 1978.
(Compiler with Lewis) Cat Encounters: A Cat-Lover's Anthology, Lothrop, Lee & Shepard Books (New York), 1979.
(Compiler and author of introduction with Lewis) Fun Phantoms: Tales of Ghostly Entertainment, Lothrop, Lee & Shepard Books (New York), 1979.

(Compiler with Lewis) The Haunted Dolls: An Anthology, Doubleday (Garden City, NY), 1980.
A Present for Charles Dickens, Westminster Press (Philadelphia, PA), 1983.


Editor:

James Joyce: Two Decades of Criticism, Vanguard, 1948, reprinted, 1963.

Teen-Age Treasury for Girls, Funk & Wagnalls, 1958.

Teen-Age Treasury of Good Humor, Funk & Wagnalls, 1960.
(With R. Manley) The Age of the Manager: A Treasury of Our Times, Macmillan, 1962.
Editor, with sister Gogo Lewis: Teen-Age Treasury of Our Science World, Funk & Wagnalls, 1961.
Teen-Age Treasury of Imagination and Discovery, Funk & Wagnalls, 1962.
Mystery! A Treasury for Younger Readers, Funk & Wagnalls, 1963.
Teen-Age Treasury of the Arts, Funk & Wagnalls, 1964.
Merriment! A Treasury for Young Readers, Funk & Wagnalls, 1965.
Suspense: A Treasury for Young Adults, Funk & Wagnalls, 1966.
The Oceans: A Treasury of the Sea World, Doubleday, 1967.
Magic: A Treasury for Young Readers, Funk & Wagnalls, 1967.
Polar Secrets: A Treasury of the Arctic and Antarctic, Doubleday, 1968.
High Adventure: A Treasury for Young Adults, Funk & Wagnalls, 1968.
To You With Love: A Treasury of Great Romantic Literature, M. Smith, 1969. Shapes of the Supernatural, Doubleday, 1969.

A Gathering of Ghosts: A Treasury, Funk & Wagnalls, 1970.
Ladies of Horror: Two Centuries of Supernatural Stories by the Gentle Sex, Lothrop, 1971.
Grande Dames of Detection: Two Centuries of Sleuthing Stories by the Gentle Sex, Lothrop, 1973.
Mistresses of Mystery: Two Centuries of Suspense Stories by the Gentle Sex, Lothrop, 1973.
Bewitched Beings: Phantoms, Familiars, and the Possessed in Stories From Two Centuries, Lothrop, 1974.
Baleful Beasts: Great Supernatural Stories of the Animal Kingdom, Lothrop, 1974.
Masters of the Macabre: An Anthology of Mystery, Horror, and Detection, Doubleday, 1975.
Ladies of the Gothics: Tales of Romance and Terror by the Gentle Sex, Lothrop, 1975.
Ladies of Fantasy: Two Centuries of Sinister Stories by the Gentle Sex, Lothrop, 1975.
Sisters of Sorcery: Two Centuries of Witchcraft Stories by the Gentle Sex, Lothrop, 1976.
Women of the Weird: Eerie Stories by the Gentle Sex, Lothrop, 1976.
Ghostly Gentlewomen: Two Centuries of Spectral Stories by the Gentle Sex, Lothrop, 1977.
Masters of Shades and Shadows, Doubleday, 1978.


Lenona.

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