1. ‘Again, Dangerous Visions’, Introduction. The writers named in this as contributors (or said to have promised stories) are:

Russell Bates
Doris Pitkin Buck
Octavia Butler
A. Bertram Chandler
John Christopher
Avram Davidson
Chan Davis
Gordon Dickson
George Alec Effinger
Howard Fast
Franklin Fisher
Ron Goulart
Wyman Guin
James Gunn
Graham Hall
Frank Herbert
Steve Herbst
John Jakes
Daniel Keyes
Anne McCaffrey
Vonda McIntyre
Michael Moorcock
Charles Platt
Mack Reynolds
Fred Saberhagen
Thomas Scortia
Robert Sheckley
Clifford Simak
James Sutherland
Richard Wilson
Laurence Yep

2. Wyman Guin–announced in ‘Again, Dangerous Visions’ in 1971 as one of the authors with a story already purchased–was said in 1973 to be rewriting his story.

3. The 68 authors announced as contributors by Harlan Ellison in 1973 were as follows. Names marked with ## do not appear in the list for 1979, and presumably withdrew their stories:

Russell Bates
Alfred Bester
Michael Bishop
Anthony Boucher
S. Kye Boult (pseud. for William E. Cochrane; see Note 5, below)
Hamilton/Brackett
Mildred Downey Broxon
Edward Bryant
Frank Bryning
Doris Pitkin Buck
Octavia Butler
Grant Carrington
Delbert Casada
A. Bertram Chandler
Graham Charnock
John Christopher
Gerard Conway
Arthur Byron Cover
Jack M. Dann
Avram Davidson
Chan Davis
Hank Davis
Gordon R. Dickson
Stan Dryer
Gordon Eklund
George Alec Effinger
Howard Fast
Leslie A. Fiedler
Franklin Fisher
Jacques Goudchaux ##
Ron Goulart
Joseph Green
James E. Gunn
Joe W. Haldeman
Graham Hall
Frank Herbert
Steve Herbst
Leonard Isaacs
John Jakes
Susan C. Lette
Robert Lilly
Janet May
Anne McCaffrey
Vonda N. McIntyre
Michael Moorcock
Ward Moore
John Morressy
Edgar Pangborn
Doris Piserchia
Charles Platt
Jerry Pournelle
Joseph F. Pumilia
Mack Reynolds
Fred Saberhagen
Thomas N. Scortia ##
Robert Sheckley
Clifford D. Simak
James Sutherland
The Firesign Theatre
Robert Thom
Robert Thurston
Lisa Tuttle
A.E. van Vogt
Daniel Walther
Richard Wilson
David Wise
Robert Wissner
Laurence Yep

Rewrites were in progress by:

Gardner Dozois
Wyman Guin
Charles L. Harness

4. The additional authors listed by Harlan Ellison in February 1974 were:

Michael G. Coney
Charles L. Harness
Harry Harrison
Richard E. Peck
Cordwainer Smith
Wallace West
Robert Wissner

[Note that Mr Ellison’s count of authors is at this stage 75. As 68 had been previously announced, and 7 more are listed here, we can presume that at this date Gardner Dozois and Wyman Guin had not yet delivered their rewritten stories.]

5. The authors listed in ‘Locus’ 222, June 1979, were as follows. Those marked with ** were added since 1974 (when the book was announced as being “closed”). Gardner Dozois and Wyman Guin do not appear, and presumably had not delivered their rewritten stories at this date. They might have done since:

Russell Bates
Alfred Bester
Michael Bishop
Nelson S. Bond **
Anthony Boucher
Hamilton/Brackett
Mildred Downey Broxon
Edward Bryant
Frank Bryning
Doris Pitkin Buck
Algis Budrys **
Octavia Butler
Orson Scott Card **
Grant Carrington
Delbert Casada
A. Bertram Chandler
Graham Charnock
John Christopher
W. E. Cochrane (see ‘S. Kye Boult’ in Note 3, above)
Michael G. Coney
Gerard Conway
Arthur Byron Cover
Philippe Curval **
Jack M. Dann
Avram Davidson
Chan Davis
Hank Davis
Gordon R. Dickson
Stan Dryer
G.C. Edmondson **
George Alec Effinger
Gordon Eklund
Howard Fast
Jonathan Fast **
Leslie A. Fiedler
Franklin Fisher
Felix C. Gotschalk **
Ron Goulart
Joseph Green
James E. Gunn
Joe W. Haldeman
Graham Hall
Charles L. Harness
Harry Harrison
Frank Herbert
Steve Herbst
Pat C. Hodgell **
Leonard Isaacs
John Jakes
Langdon Jones **
Raul Judson **
Daniel Keyes **
William Kotzwinkle **
Susan C. Lette
Robert Lilly
Janet May
Anne McCaffrey
Vonda M. McIntyre
Michael Moorcock
Raylyn Moore **
Ward Moore
John Morressy
Edgar Pangborn
Richard E. Peck
Doris Piserchia
Charles Platt
P.J. Plauger **
Jerry Pournelle
Joseph Pumilia
Tom Reamy **
Mack Reynolds
D.M. Rowles **
Fred Saberhagen
Bob Shaw **
Robert Sheckley
Clifford D. Simak
Cordwainer Smith
Bruce Sterling **
Craig Strete **
James Sutherland
The Firesign Theatre
Robert Thom
Robert Thurston
Wilson Tucker **
Lisa Tuttle
Steven Utley **
John Varley **
A.E. van Vogt
Daniel Walther
Ian Watson **
M. W. Wellman **
Wallace West
Jack Williamson **
Richard Wilson
David Wise
Robert Wissner
Laurence Yep
Pamela Zoline **

6. The following writers, said at one time or another to be contributors, are all known or thought to have died:

Alfred Bester
Anthony Boucher
Leigh Brackett
Frank Bryning
Doris Pitkin Buck
Bertram Chandler
Avram Davidson
Wyman Guin
Graham Hall
Edmond Hamilton
Charles L. Harness
Frank Herbert
Leonard Isaacs
Ward Moore
Edgar Pangborn
Tom Reamy
Mack Reynolds
Thomas Scortia
Clifford D. Simak
Cordwainer Smith
Robert Thom
Manly Wade Wellman
Wallace West
Richard Wilson