- Jones, Susan Carleton (1864-1926) (stories)
- Author, wife of Guy Carleton Jones (1864-1950). She was Canadian, and was active in the war effort.
- Jones, Wilfred (fl. 1910s-1930s) (art)
- There appear to have been at least two artists and an underwriter by this name.
- Jonson, Ben (1572-1637) (stories)
- See en.wikipedia.org/wiki/Ben_Jonson
- Jonville, Christian ({c}1935-2014) (stories) (art)
- See www.ladepeche.pf/christian-jonville-medecin-et-homme-de-grandes-aventures/
- Jope-Slade, Christine (1893-1942) (stories)
- See www.authorandbookinfo.com/cgi-bin/auth.pl?J002382
- Jordan, Alfred (fl. 1910s) (stories)
- Perhaps writer Alfred Charles Jordan (1872-?).
- Jordan, Elizabeth (Garver) (1865-1947) (stories)
- Born in Milwaukee; contributed numerous essays and short stories to English and American magazines; playwright; editor, Harpers Bazaar, 1900-1913.
- Jordan, Henry (Clayton) Hank (1926- ) (stories)
- Advertising writer.
- Jordan, Kate [i.e., Kate Jordan Vermilye] (1862-1926) (stories)
- Born in Dublin.
- Jordan, William George (1864-1928) (stories)
- See en.wikipedia.org/wiki/William_George_Jordan
- Joscelyn, Archie (Lynn) (1899-1986) (stories)
- See helenair.com/lifestyles/western-wonder/article_db7b9bfc-313d-56d9-8776-d503d679b9b6.html
- Joseph, George (Israel) [born Israel Joseph] (1909-1989) (stories) (art)
- Born in Glasgow; educated in law in New Zealand; barrister in England and New Zealand; author of hundreds of magazine short stories.
- Joseph, John (fl. 1920s-1930s) (stories)
- Traveller and writer. Born in Iowa; lived in Idaho.
- Joseph, M(ichael) K(ennedy) (1914-1981) (stories)
- See www.sf-encyclopedia.com/entry/joseph_m_k
- Joseph-Renaud, Jean [also given as Jean-Joseph Renaud] (1873-1953) (stories)
- Born in Paris; retired undefeated as champion fencer in France; novelist, playwright and journalist.
- Josselyn, Talbert (1885?-1961) (stories)
- Widely-published author of magazine sports stories. Served with the Office of War Information in San Francisco during WWII, died in Carmel, CA.
- Joyce, James (Augustine Aloysius) (1882-1941) (stories)
- See en.wikipedia.org/wiki/James_Joyce
- Joyner, Roy E. (fl. 1950s) (stories)
- Not physician Roy Elton Joyner (1922- ).
- Judge, Adolphus Eugene (1856-1931) (stories)
- Born and died in London.
- Juneau, Eric (fl. 2010s) (stories)
- See author-quest.blogspot.co.uk
- Kabza, K(assidy) J(ack) (fl. 2000s-2010s) (stories)
- See kjkabza.com/about.html
- Kagey, Rudolf (Hornaday) (1904-1946) (stories)
- Born in Tuscola, Illinois; graduate of the University of Illinois; Professor of Philosophy in New York; died in Manhattan.
- Kahler, Hugh (Torbert) MacNair (1883-1969) (stories)
- Born in Philadelphia; educated at Princeton University; contributed fiction to numerous magazines.
- Kaiser, August (fl. 1920s) (art)
- Born in Germany; lived in New York City.
- Kalez, Jay J. (1895-1982) (stories)
- Writer. Born in Spokane, Washington.
- Kamyshansky, Boris N. (fl. 1930s) (stories)
- Civil engineer. Born in Russia of a wealthy cossack family, led an adventurous early life. Father of Natalie B. Sokoloff.
- Kandel, Aben (1897-1993) (stories)
- See en.wikipedia.org/wiki/Aben_Kandel
- Kane, Henry (J.) (1908-1988) (stories)
- See www.mulhollandbooks.com/2010/11/22/the-murders-in-memory-lane-remembering-henry-kane
- Kane, William R(eno) (1885-?) (stories)
- Born in Port Carbon, Pennsylvania; magazine and journal editor, including of The Editor from 1910.
- Kanin, Michael (1910-1993) (stories)
- See en.wikipedia.org/wiki/Michael_Kanin
- Kantor, MacKinlay (1904-1977) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kantor_mackinlay
- Kantor, Seth (1926-1993) (stories)
- Journalist and writer. Born in New York City; lived in Bethesda, Maryland.
- Kappus, Franz Xaver (1883-1966) (stories)
- See en.wikipedia.org/wiki/Franz_Xaver_Kappus
- Kardiner, Abram (1891-1981) (stories)
- Psychiatrist and author. Born in New York City; died in Easton, Connecticut.
- Karinthy, Ferenc (1921-1992) (stories)
- See en.wikipedia.org/wiki/Ferenc_Karinthy
- Kark, (Arthur) Leslie (1910-2004) (stories)
- See www.theguardian.com/news/2004/apr/10/guardianobituaries
- Karney, Jack (1911- ) (stories) (assoc.)
- Born in New York City; worked in New York City D.A.s office.
- Karp, David (1922-1999) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/karp_david
- Kastel, Roger (K.) (1931- ) (art)
- Born in White Plains, New York; lives in LaGrangeville, New York.
- Kastle, Herbert D(avid) (1924-1987) (stories)
- See lynn-munroe-books.com/list59/herbertkastle.htm
- Kataev, Valentin (Petrovich) (1897-1986) (stories)
- See en.wikipedia.org/wiki/Valentin_Kataev
- Katz, Fritz (fl. 1950s-1960s) (stories)
- Probably pseudonymous; not author, historian and educator Friedrich Katz (1927- ).
- Katzin, (Queenie) Olga (I.) (1896-1987) (stories)
- See bearalley.blogspot.co.uk/2016/04/olga-katzin.html
- Kauffman, Reginald Wright (1877-1959) (stories)
- Born and mostly lived in Lancaster, Pa.; graduate of Harvard; editor of Bangor, Maine, newspaper in 1940s.
- Kauffmann, Stanley (1916-2013) (stories)
- See en.wikipedia.org/wiki/Stanley_Kauffmann
- Kaufman, Herbert (1878-1947) (stories)
- See en.wikipedia.org/wiki/Herbert_Kaufman
- Kaufman, Jessie (1866-1952) (stories)
- Born in New York; died in San Francisco.
- Kaufman, Lynne (fl. 1960s-1990s) (stories)
- See www.lynnekaufman.com
- Kauten, Mat(hias) (1911-1977) (art)
- See pulpartists.com/Kauten.html
- Kavanagh, Julia (1824-1877) (stories)
- See en.wikipedia.org/wiki/Julia_Kavanagh
- Kavanagh, Ted (1892-1958) (stories)
- See en.wikipedia.org/wiki/Ted_Kavanagh
- Kay, Kenneth (Edmond) (1915-1990) (stories)
- Writer. Born in Atlanta, Georgia; lived in Norfolk, Virginia.
- Kayser, Ronal (1905-1988) (stories)
- Writer and journalist. Born in the midwestern United States; lived in La Jolla, California.
- Kazakov, Yuri (Pavlovich) (1927-1982) (stories)
- See en.wikipedia.org/wiki/Yury_Kazakov
- Kearns, Jerry (fl. 1950s) (stories)
- Artist and writer, perhaps from Massachusetts.
- Keasler, John (1921- ) (stories)
- Syndicated columnist and novelist; perhaps from Florida.
- Keating, H(enry) R(eymond) F(itzwalter) (1926-2011) (stories)
- See www.sf-encyclopedia.com/entry/keating_h_r_f
- Keating, Joseph (1871-1934) (stories)
- Born and educated in Wales; author and dramatist.
- Keaton, David James (fl. 2000s-2010s) (stories)
- See davidjameskeaton.com
- Keats, John (1795-1821) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_Keats
- Keble, John (1792-1866) (stories)
- See en.wikipedia.org/wiki/John_Keble
- Keefer, Ralph Delamere (1883-1912) (stories)
- From England, enlisted in the Canadian Royal Northwest Mounted Police, and led an adventurous life. He died in the Adirondacks of New York, and these stories were discovered among his possessions by his friend Chalmers, who rewrote them and sold them as posthumous collaborations.
- Keeler, Harry Stephen (1889-1967) (stories)
- See www.sf-encyclopedia.com/entry/keeler_harry_stephen
- Keene, Day; pseudonym of Gunard Hjertstedt (1904-1969) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/keene_day
- Keener, E. Kirby (fl. 1910s) (stories)
- Writer. From Los Angeles, California.
- Keevil, Henry John (1914-1978) (stories)
- See bearalley.blogspot.co.uk/2013/07/henry-john-keevill.html
- Keith, Joseph Joel (fl. 1930s-1960s) (stories)
- See www.oac.cdlib.org/findaid/ark:/13030/kt6m3nf56s/
- Kelland, Clarence Budington (1881-1964) (stories)
- Born in Portland, Michigan; educated at Detroit College of Law.
- Kellar, Philip R(utherford) (fl. 1900s-1910s) (stories)
- American playwright.
- Keller, H(arry) A. (1894-1973?) (stories)
- Born in Philadelphia. Editor of mystery and detective story magazines.
- Keller, Helen (Adams) (1880-1964) (stories)
- See en.wikipedia.org/wiki/Helen_Keller
- Keller, (Charles) Reamer (1905-1994) (stories)
- See en.wikipedia.org/wiki/Reamer_Keller
- Kellett, E(rnest) E(dward) (1860-1933) (stories)
- See www.sf-encyclopedia.com/entry/kellett_e_e
- Kelley, Francis Beverly (1905-1984?) (stories)
- Ohio author.
- Kelley, (William) Hubert (1899-1959) (stories)
- Poet, playwright, editor, reporter. Died in Nyack, New York.
- Kelley, Thomas P(atrick) (1905-1982) (stories)
- See www.sf-encyclopedia.com/entry/kelley_thomas_p
- Kellock, Harold (1879-1954) (stories)
- A reporter and a biographer; he was born in New York and died in Washington.
- Kellogg, Elijah (Jr.) (1813-1901) (stories)
- See en.wikipedia.org/wiki/Elijah_Kellogg
- Kelly, Eleanor Mercein (1880-1968) (stories)
- See en.wikipedia.org/wiki/Eleanor_Mercein_Kelly
- Kelly, Florence Finch (1858-1939) (stories)
- Born in Girard, Illinois; educated at University of Kansas; many years on staff of New York Times Review of Books; did extensive newspaper work in Boston, New York, San Francisco, etc.
- Kelly, Frank K(ing) (1914-2010) (stories)
- See www.sf-encyclopedia.com/entry/kelly_frank_k
- Kelly, Fred C(harters) (1882-1959) (stories)
- See en.wikipedia.org/wiki/Fred_C._Kelly
- Kemp, H(arold) S(tuart) M(iller) (1892-?) (stories)
- Writer. Born in England, lived in Canada.
- Kemp, Harry (Hibbard) (1883-1960) (stories)
- Poet and writer. Born in Youngstown, Ohio; died in Provincetown, Massachusetts.
- Kempton, Kenneth Payson (1891-1955) (stories)
- Teacher, writer. Born and died in Newtonville, Massachusetts.
- Kendall, Ezra (1861-1910) (stories)
- See en.wikipedia.org/wiki/Ezra_Kendall
- Kendall, May [born Emma Goldworth Kendall] (1861-1943) (stories)
- See en.wikipedia.org/wiki/May_Kendall
- Kenealy, Annesley (Mary Flood) (1868-1927) (stories)
- Sister of Arabella Kenealy.
- Kenealy, Arabella (Madonna) (1864-1938) (stories)
- Born in Sussex; educated at the London School of Medicine for Women; practice medicine for a few years before retiring due to ill health. Sister of Annesley Kenealy.
- Kennedy, Charles Rann (1871-1950) (stories) (assoc.)
- See en.wikipedia.org/wiki/Charles_Rann_Kennedy_(playwright)
- Kennedy, Howard Angus (1861-1938) (stories)
- Born in London; educated at City of London School; contributed to many magazines and newspapers; lived in Montreal, Canada.
- Kennedy, John F(itzgerald) (1917-1963) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_F._Kennedy
- Kennedy, Joseph P(atrick, Sr.) (1888-1969) (stories) (assoc.)
- See en.wikipedia.org/wiki/Joseph_P._Kennedy,_Sr.
- Kennedy, Robert Emmet (1877-1941) (stories)
- See www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=100540066
- Kennedy, Robert F(rancis) (1925-1968) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robert_F._Kennedy