Hugo Award Winners from the 1970s
1970 Hugo Winners
The 1970 Hugos were given out at Heicon '70 in Heidelberg, Germany.
Frank Kelly Freas' Hugo
Novel: The Left Hand of Darkness by Ursula K. Le Guin
Novella: "Ship of Shadows" by Fritz Leiber
Short Story: "Time Considered as a Helix of Semi-Precious Stones" by Samuel R. Delany
Dramatic Presentation: News coverage of Apollo XI
Professional Magazine: F&SF
Professional Artist: Frank Kelly Freas
Fanzine: Science Fiction Review (Richard E. Geis, ed.)
Fan Writer: Bob Tucker
Fan Artist: Tim Kirk
1971 Hugo Winners
The 1971 Hugos were given out at Noreascon I in Boston, MA.
Novel: Ringworld by Larry Niven
Novella: "Ill Met in Lankhmar" by Fritz Leiber
Short Story: "Slow Sculpture" by Theodore Sturgeon
Dramatic Presentation: No Award
Professional Magazine: F&SF
Professional Artist: Leo & Diane Dillon
Fanzine: Locus (Charles & Dena Brown, eds.)
Fan Writer: Richard E. Geis
Fan Artist: Alicia Austin
1972 Hugo Winners
The 1972 Hugos were given out at at L.A.Con I in Los Angeles, CA.
Novel: To Your Scattered Bodies Go by Philip Jose Farmer
Novella: "The Queen of Air and Darkness" by Poul Anderson 
Short Story: "Inconstant Moon" by Larry Niven
Dramatic Presentation: A Clockwork Orange written and directed by Stanley Kubrick (Warner Brothers)
Professional Magazine: F&SF
Professional Artist: Frank Kelly Freas
Amateur Magazine: Locus (Charles N. Brown, ed.)
Fan Writer: Harry Warner, Jr.
Fan Artist: Tim Kirk
Special Committee Awards: Harlan Ellison for excellence in anthologizing
Again, Dangerous Visions
Club du Livre d'Anticioation (France) for excellence in book production
Nueva Dimension (Spain) for excellence in magazine production
1973 Hugo Winners
The 1973 Hugos were given out at Torcon 2 in Toronto, Ontario, Canada.
Novel: The Gods Themselves by Isaac Asimov
Novella: "The Word for World is Forest" by Ursula K. Le Guin
Novelette: "Goat Song" by Poul Anderson
Short Story: "Eurema's Dam" by R.A. Lafferty and "The Meeting"
by Frederik Pohl and C. M. Kornbluth (tie)
Dramatic Presentation: Slaughterhouse Five written by Stephen Geller, directed by George Roy Hill (Universal)
Professional Editor: Ben Bova
Professional Artist: Frank Kelly Freas
Amateur Magazine: Energumen (Mike Glicksohn & Susan Wood Glicksohn, eds.)
Fan Writer: Terry Carr
Fan Artist: Tim Kirk
Campbell Award: Jerry Pournelle
Special Committee Award: Pierre Versins for L'Encyclopedie de l'Utopie et de la Science Fiction
1974 Hugo Winners
The 1974 Hugos were given out at Discon II in Washington, DC.
James Tiptree, Jr.'s Hugo 
Novel: Rendezvous With Rama by Arthur C. Clarke
Novella: "The Girl Who Was Plugged In" by James Tiptree, Jr.
Novelette: "The Deathbird" by Harlan Ellison
Short Story: "The Ones Who Walk Away from Omelas" by Ursula K. Le Guin
Dramatic Presentation: Sleeper, written by Woody Allen and Marshall Brickman, directed by Woody Allen (Rollins-Joffe Productions)
Professional Editor: Ben Bova
Professional Artist: Frank Kelly Freas
Amateur Magazine: Algol (Andrew Porter, ed.); and The Alien Critic (Richard E. Geis, ed.) (tie)
Fan Writer: Susan Wood
Fan Artist: Tim Kirk
Campbell Award: Spider Robinson and Lisa Tuttle (tie)
Gandalf Award (Grand Master of Fantasy): J.R.R. Tolkien
Special Committee Award: Chesley Bonestell, for his illustrations
1975 Hugo Winners
The 1975 Hugos were given out at Aussiecon One in Melbourne, Australia
Novel: The Dispossessed by Ursula K. Le Guin
Novella: "A Song for Lya" by George R.R. Martin
Novelette: "Adrift Just Off the Islets of Langerhans" by Harlan Ellison
Short Story: "The Hole Man" by Larry Niven
Dramatic Presentation: Young Frankenstein written by Gene Wilder & Mel Brooks, directed by Mel Brooks (20th Century Fox)
Professional Editor: Ben Bova
Professional Artist: Frank Kelly Freas
Amateur Magazine: The Alien Critic (Richard E. Geis, ed.)
Fan Writer: Richard E. Geis
Fan Artist: Bill Rotsler
Campbell Award: P.J. Plauger
Gandalf Award (Grand Master): Fritz Leiber
Special Committee Awards:
Donald A. Wollheim, as "the fan who has done everything"
Walt Lee, for Reference Guide to Fantastic Films
1976 Hugo Winners
The 1976 Hugos were given out at MidAmeriCon in Kansas City, MO. Photos from MidAmeriCon.
Novel: The Forever War by Joe Haldeman
Novella: "Home is the Hangman" by Roger Zelazny
Novelette: "The Borderland of Sol" by Larry Niven
Short Story: "Catch That Zeppelin!" by Fritz Leiber
Dramatic Presentation: A Boy and His Dog written by Harlan Ellison and L. Q. Jones, directed by L. Q. Jones (LQ/JAF)
Professional Editor: Ben Bova
Professional Artist: Frank Kelly Freas
Fanzine: Locus (Charles & Dena Brown, eds.)
Fan Writer: Richard E. Geis
Fan Artist: Tim Kirk
Gandalf Award (Grand Master): L. Sprague de Camp
Special Committee Award: James E. Gunn for Alternate Worlds, The Illustrated History of Science Fiction
1977 Hugo Winners
The 1977 Hugos were given out at Suncon in Miami Beach, FL.
James Tiptree, Jr.'s Hugo
Novel: Where Late the Sweet Birds Sang by Kate Wilhelm
Novella: "By Any Other Name" by Spider Robinson; and "Houston, Houston, Do You Read?" by James Tiptree, Jr. (tie)
Novelette: "The Bicentennial Man" by Isaac Asimov
Short Story: "Tricentennial" by Joe Haldeman
Dramatic Presentation: No Award
Professional Editor: Ben Bova
Professional Artist: Rick Sternbach
Fanzine: Science Fiction Review (Richard E. Geis, ed.)
Fan Writer: Susan Wood and Richard E. Geis (tie)
Fan Artist: Phil Foglio
Campbell Award: C.J. Cherryh
Gandalf Award (Grand Master): Andre Norton
Special Committee Award: George Lucas for Star Wars
1978 Hugo Winners
The 1978 Hugos were given out at IguanaCon II in Phoenix, AZ.
Novel: Gateway by Frederik Pohl
Novella: "Stardance" by Spider & Jeanne Robinson
Novelette: "Eyes of Amber" by Joan D. Vinge
Short Story: "Jeffty Is Five" by Harlan Ellison
Dramatic Presentation: Star Wars written and directed by George Lucas (Lucasfilm/20th Century Fox)
Professional Editor: George Scithers
Professional Artist: Rick Sternbach
Fanzine: Locus (Charles & Dena Brown, eds.)
Fan Writer: Richard E. Geis
Fan Artist: Phil Foglio
Campbell Award: Orson Scott Card
Gandalf Award (Grand Master): Poul Anderson
Gandalf Award (Book-Length Fantasy): The Silmarillion by J.R.R. Tolkien (edited by Christopher Tolkien)
1979 Hugo Winners
The 1979 Hugos were given out at Seacon '79 in Brighton, UK.
Novel: Dreamsnake by Vonda McIntyre
Novella: "The Persistence of Vision" by John Varley
Novelette: "Hunter's Moon" by Poul Anderson
Short Story: "Cassandra" by C.J. Cherryh
Dramatic Presentation: Superman written by Mario Puzo, David Newman, Leslie Newman & Robert Benton, directed by Richard Donner (Warner Brothers/Columbia)
Professional Editor: Ben Bova
Professional Artist: Vincent DiFate
Fanzine: Science Fiction Review (Richard E. Geis, ed.)
Fan Writer: Bob Shaw
Fan Artist: Bill Rotsler
Campbell Award: Stephen R. Donaldson
Gandalf Award (Grand Master): Ursula K. Le Guin
Gandalf Award (Book-Length Fantasy): The White Dragon by Anne McCaffrey