Marshall Tymn
Marshall Benton Tymn (11 December 1937 – 24 May 2020) was an editor, academic and bibliographer of science fiction and fantasy. He received the Pilgrim Award in 1990. He was a founder of the Instructors of Science Fiction in Higher Education. Bibliography
 A Directory of Science Fiction and Fantasy Publishing Houses and Book Dealers (1974)
 A Research Guide to Science Fiction Studies: An Annotated Checklist of Primary and Secondary Sources (1977) (with L.W. Currey and Roger C. Schlobin) 
 Index to Stories in Thematic Anthologies of Science Fiction (1978) (with L.W. Currey; Martin H. Greenberg and Joseph D. Olander)
 The Year's Scholarship in Science Fiction and Fantasy: 1972-1975 (1979) (with Roger C. Schlobin) 
 Recent Critical Studies on Fantasy Literature: An Annotated Checklist (1978)
 A Basic Reference Shelf for Science Fiction Teachers (1978)
 American Fantasy and Science Fiction: Toward a Bibliography of Works Published in the United States, 1948-1973 (1979) 
 Fantasy Literature: A Core Collection and Reference Guide (1979) (with Robert H. Boyer and Kenneth J. Zahorski)
 Horror Literature: A Core Collection and Reference Guide (1981)
 The Science Fiction Reference Book (ed.) (1981)
 A Teacher's Guide to Science Fiction (1981)
 Survey of Science Fiction Literature: Biographical Supplement (1982) 
 The Year's Scholarship in Science Fiction and Fantasy: 1976-1979 (1983) (with Roger C. Schlobin) 
 The Year's Scholarship in Science Fiction, Fantasy and Horror Literature: 1980 (1983)
 The Year's Scholarship in Science Fiction, Fantasy and Horror Literature: 1981 (1984)
 The Year's Scholarship in Science Fiction, Fantasy and Horror Literature: 1982 (1985)
 Science Fiction, Fantasy and Weird Fiction Magazines (1985) (with Mike Ashley) 
 Science Fiction: A Teacher's Guide & Resource Book (ed.) (1988)
 The Celebration of the Fantastic: Selected Papers from the Tenth Anniversary International Conference on the Fantastic in the Arts (1992) (with Csilla Bertha and Donald E. Morse)
 Fantasy and Horror (1999) (with Neil Barron)

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1937 births
2020 deaths
American speculative fiction critics
American speculative fiction editors
American bibliographers
Science fiction editors
Science fiction critics