- Casewit, Curtis W(erner) (1922-2002) (stories)
- See www.sf-encyclopedia.com/entry/casewit_curtis_w
- Casey, Kathryn (1959?- ) (stories)
- Living in Houston, Texas.
- Cassiday, Bruce (Bingham) (1920-2005) (stories)
- See www.sf-encyclopedia.com/entry/cassiday_bruce
- Cassutt, Michael (Joseph) (1954- ) (stories)
- See www.sf-encyclopedia.com/entry/cassutt_michael
- Castillo, Linda (fl. 2000s-2010s) (stories) (assoc.)
- Living in Dallas.
- Castle, (Mary?) Agnes (Sweetman) (1860-1922) (stories)
- Born in Queens County, Ireland; died in Santa Margherita Liguire, Genoa, Italy. Sister of Mary E. Blundell.
- Castle, (Louis Anthony) Egerton (1858-1920) (stories)
- See en.wikipedia.org/wiki/Egerton_Castle
- Castle, Marian (née Johnson) (1896-1993) (stories)
- Born in Kendall County, Illinois. Attended Carroll College (Wisconsin) and Millikin University (Illinois), received a Ph.B. (Bachelor of Philosophy) from the University of Chicago. Lived in Denver, Colorado, where she received numerous awards from the Colorado Authors League. Died in Los Angeles, California.
- Cathcart, Vera Lady [born Vera Estelle Raubenheimer] (1892-?) (stories)
- See www.thepeerage.com/p8939.htm
- Catton, George L. (1880-?) (stories)
- Traveller and adventurer. Born in Norwich, Oxford County, Ontario, Canada; lived in Canada.
- Cave, Hugh B(arnett) (1910-2004) (stories)
- Prolific writer for pulp magazines; plantation owner in Haiti. Born in Chester, England; lived in Florida.
- Cave, Peter (Leslie) (1940- ) (stories)
- See www.sf-encyclopedia.com/entry/cave_peter
- Cecil, Henry; pseudonym of Henry Cecil Leon (1902-1976) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cecil_henry
- Cerasini, Marc A. (1952- ) (stories)
- See www.sf-encyclopedia.com/entry/cerasini_marc_a
- Ceren, Sandra Levy (1932- ) (stories)
- Clinical psychologist in California.
- Cha, Steph (1986- ) (stories)
- See bystephcha.wordpress.com
- Chadeayne, Lee (fl. 1970s-2010s) (stories)
- See www.chadeayne.net
- Chadwick, Joseph L(ewis) (1909-1987) (stories)
- Born in York, Pennsylvania; died in Tampa, Florida. Author of numerous short stories, 130 novels, and nonfiction accounts of oil discoveries in Pennsylvania and of the Texas Rangers.
- Chadwick, Paul (Arthur) (1902-1972) (stories)
- See en.wikipedia.org/wiki/Paul_Chadwick_(author)
- Chamberlain, (Edwin) William (1903-1969?) (stories)
- See www.sf-encyclopedia.com/entry/chamberlain_william
- Chambers, James (fl. 1990s-2010s) (stories)
- See www.jameschambersonline.com
- Chambers, Jim [i.e., Julian Graeff Chambers] (1914-1977) (art)
- See pulpartists.com/Chambers.html
- Chambers, Robert W(illiam) (1865-1933) (stories)
- See www.sf-encyclopedia.com/entry/chambers_robert_w
- Chambers, (Elwyn) Whitman (1896-1968) (stories)
- See www.sf-encyclopedia.com/entry/chambers_whitman
- Champion de Crespigny, Claude Vierville (1882-1927) (stories)
- See www.theauxiliaries.com/men-alphabetical/men-c/champion-de-crespigny/champion-de-crespigny.html
- Champion, D(Arcy) L(yndon) (1902-1968) (stories)
- Writer and creator of the pulp character The Phantom Detective; served with the English during World War II. Born in Melbourne, Australia; died in New York City.
- Champneys, Amian Lister (1879-1951) (stories)
- See desturmobed.blogspot.com/2019/03/nicholas-olde.html
- Chance, John Newton [born John Richard Henry Chance] (1911-1983) (stories)
- Born in Streatham Hill, England.
- Chandler, A(rthur) Bertram (1912-1984) (stories)
- See www.sf-encyclopedia.com/entry/chandler_a_bertram
- Chaney, Lon [i.e., Leonidas Frank Chaney] (1883-1930) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lon_Chaney
- Chapel, Charles Edward (1904- ) (stories) (assoc.)
- Marine Corps officer, aeronautics engineer, gunsmith and writer. Born in Manchester, Iowa.
- Chapin, Carl M(attison) (1879-1938) (stories)
- Born in Waterbury, Connecticut; newspaperman, 1905-1927; contributed fiction to magazines; a specialist in fires and firemen. Born in Waterbury, Connecticut; died in West Hartford, Connecticut.
- Chaplinsky, Joshua (fl. 2010s) (stories)
- See joshuachaplinsky.com
- Charles, Paul (1950- ) (stories) (assoc.)
- Music agent and promoter.
- Charles, Robert; pseudonym of Robert Charles Smith (1938- ) (stories)
- See fr.wikipedia.org/wiki/Robert_Charles
- Charteris, Leslie [born Leslie Charles Bowyer-Yin] (1907-1993) (stories) (assoc.)
- See en.wikipedia.org/wiki/Leslie_Charteris
- Charyn, Jerome (1937- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/charyn_jerome
- Chase, Mary Ellen (1887-1973) (stories)
- See en.wikipedia.org/wiki/Mary_Ellen_Chase
- Chatterton, E(dward) Keble (1878-1944) (stories)
- See www.sf-encyclopedia.com/entry/chatterton_e_keble
- Chau, Chan (fl. 2010s) (stories) (art)
- See aluhnim.deviantart.com
- Chen, Sarah M. (fl. 2000s-2010s) (stories)
- See www.sarahmchen.com
- Cherry, Samuel (Joseph) (1903-1975) (art)
- See pulpartists.com/Cherry.html
- Chesbro, George C(lark) (1940-2008) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/chesbro_george_c
- Cheshire, Giff(ord Paul) (1905-1973) (stories)
- See archiveswest.orbiscascade.org/ark:/80444/xv75485
- Chesterton, G(ilbert) K(eith) (1874-1936) (stories) (assoc.)
- See en.wikipedia.org/wiki/G._K._Chesterton
- Chidsey, Donald Barr (1902-1981) (stories) (assoc.)
- See historicnavalfiction.com/other-authors/1772-donald-barr-chidsey
- Child, Lincoln (1957- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/child_lincoln
- Childers, (Robert) Erskine (1870-1922) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robert_Erskine_Childers
- Childs, Laura; pseudonym of Gerry Schmitt (fl. 2010s) (stories) (assoc.)
- See www.laurachilds.com
- Chiriacka, Ernest (Darcy) [born Anastassios Kyriakakos] (1913-2010) (art)
- See pulpartists.com/Chiriacka.html
- Chironna, Ron (fl. 1990s-2010s) (art)
- See ronchironna.tripod.com
- Chmielarz, Sharon (1970- ) (stories)
- See www.sharonchmielarz.com
- Cholmondeley, Mary (1859-1925) (stories)
- See en.wikipedia.org/wiki/Mary_Cholmondeley
- Christensen, Jan (fl. 1990s-2010s) (stories)
- See www.janchristensen.com
- Christie, Agatha (Mary Clarissa, née Miller) (1890-1976) (stories) (assoc.)
- See en.wikipedia.org/wiki/Agatha_Christie
- Christopher, John; pseudonym of C. S. Youd (1922-2012) (stories)
- See www.sf-encyclopedia.com/entry/christopher_john
- Church, Henry F. (fl. 1930s-1950s) (stories)
- South Carolina writer.
- Churchill, Roy P. (fl. 1910s-1930s) (stories)
- Served in the Navy. Perhaps from Ohio, perhaps from Kentucky.
- Chute, Verne (1917-1986) (stories)
- See tellersofweirdtales.blogspot.co.uk/2016/04/verne-chute-1917-1986.html
- Cizak, Alec (fl. 2000s-2010s) (stories)
- See www.nomoralcenter.blogspot.co.uk
- Clamp, H(elen) M(ary) E(lizabeth) (1892-1973) (stories)
- Born in Woking, England.
- Clapperton, Richard (Guy) (1934-1984) (stories)
- See fr.wikipedia.org/wiki/Richard_Clapperton
- Clare, Kelli (fl. 2010s) (stories)
- See kelliclare.com
- Clark, John R. (1948- ) (stories)
- See sennebec.livejournal.com/profile
- Clark, Philip (1907-1975) (stories)
- Raised in Plainfield, New Jersey; with the counter intelligence corps in WWII; lived in Charleston, West Virginia; died in Swannanoa, North Carolina.
- Clark, Valma (1894-1953) (stories)
- See tellersofweirdtales.blogspot.co.uk/2014/10/valma-clark-1894-1953.html
- Clarke, Arthur C(harles) (1917-2008) (stories)
- See en.wikipedia.org/wiki/Arthur_C._Clarke
- Clarke, (John) Emery (1911-1990) (art)
- See pulpartists.com/Clarke.html
- Clarke, Fred (1921-2013) (stories)
- See www.bis-space.com/2013/04/24/9969/fred-clarke-1921-%E2%80%93-2013-a-perfect-gentleman
- Clarke, Percy A(rthur) (1895-1974) (stories)
- See www.sf-encyclopedia.com/entry/clarke_percy
- Clarkson, Ben (fl. 2010s) (art)
- See www.thebenclarkson.com
- Clason, Clyde B(urt) (1903-1987) (stories)
- Born in Denver; an advertising copywriter in Chicago, trade paper editor, and public relations manager.
- Claudy, Carl H(arry) (1879-1957) (stories)
- See www.sf-encyclopedia.com/entry/claudy_carl_h
- Clausen, Carl (1885-1954) (stories)
- Born in Denmark; he was a sailor, miner, pearl-fisher, life insurance salesman, window cleaner, lumber jack, copra trader and opera singer before turning to writing; came to the U.S. in 1906 knowing practically no English; died in Delaware Water Gap, Pennsylvania.
- Clay, Robert (Henry Keating) (1889-?) (stories)
- Born in Killiney, Dublin, Ireland; lived in Vancouver, Canada; death not traced, but probably in Canada.
- Cleland, Jane K. (fl. 2000s-2010s) (stories)
- See en.wikipedia.org/wiki/Jane_K._Cleland
- Clement, Ernest C. (1908-1985) (stories)
- Former lead writer for Modern Romance.
- Clements, Calvin (Joseph, Sr.) (1915-1997) (stories)
- Writer of screenplays; born in Jersey City, New Jersey; died in Tarzana, California.
- Clements, Colin (Campbell) (1894-1948) (stories)
- Born in Omaha, Nebraska; educated at Harvard University.
- Clifford, Aoife (fl. 2010s) (stories)
- See www.aoifeclifford.com
- Clifford, Joe (fl. 2010s) (stories) (assoc.)
- See www.joeclifford.com
- Clinch, John (fl. 2010s) (stories)
- Research student in British cinema at Queens University Belfast.
- Cline, Eric (fl. 2010s) (stories)
- See cruelcline.blogspot.com
- Cline, Leonard (Lanson, Jr.) (1893-1929) (stories)
- Born in Bay City, Michigan; died in New York City; reporter for the Detroit Times and Baltimore Sun; playwright and poet; wrote the novel listed while serving a year in prison for manslaughter; published pulp magazine stories under the pseudonym Alan Forsyth.
- Clingerman, Mildred (née McElroy) (1918- ) (stories)
- See www.sf-encyclopedia.com/entry/clingerman_mildred
- Cloete, (Edward Fairly) Stuart (Graham) (1897-1976) (stories)
- See en.wikipedia.org/wiki/Stuart_Cloete
- Clor, Chris (fl. 2010s) (art)
- See www.clorimages.com/Artist.asp?ArtistID=38203&Akey=KADJ6V2J
- Clough, B(renda) W(ang) (1955- ) (stories)
- See www.sf-encyclopedia.com/entry/clough_brenda_w
- Clouston, J(oseph) Storer (1870-1944) (stories)
- See www.sf-encyclopedia.com/entry/clouston_j_storer
- Cluley, Ray (fl. 2000s-2010s) (stories)
- See probablymonsters.wordpress.com
- Coates, Robert M(yron) (1897-1973) (stories)
- See www.sf-encyclopedia.com/entry/coates_robert_m
- Cobb, (Geoffrey) Belton (1892-1971) (stories)
- Son of Thomas Cobb.
- Cobb, Irvin S(hrewsbury) (1876-1944) (stories)
- See en.wikipedia.org/wiki/Irvin_S._Cobb
- Cobb, James H(arvey) (1953- ) (stories)
- See www.sf-encyclopedia.com/entry/cobb_james_h
- Cobb, Thomas (1854-1932) (stories)
- Born and lived in London; left school at age 12 and worked for some 20 years in his fathers tallowing business; then started writing in 1887; died in Hampstead, London, England. Father of Belton Cobb.