Courtesy of Robin Snyder, here's a draft of an on-going attempt to document all of Ditko's Mr. A material. Not an easy task since so much of it appeared in very low-run limited distribution fanzines, so any corrections and additions are appreciated. Most important are the publications (if any) which ran the two 1968 pieces which ran in THE DITKO COLLECTION that haven't been identified and the five fanzines from circa 1969 which have been listed in places as having Mr. A but copies haven't been located. Also, any advertising which may have appeared for the unpublished 1990/1991 series from AAA would be interesting.
So take a look, and please feel free to pass around a link or copy of this list around to anyone you may know who collects old fanzines or rare Ditko material to see if they can fill in any of the questions or maybe even have leads to unknown Mr. A material.
Any info can go in the comments, or contact me in the address in the sidebar, or get contact info for Robin Snyder (and ordering info on those two most recent publications with Mr. A and much more by Ditko) over here.
Mr. A, 3rd draft
Mr. A (5) witzend 3, 1967
Mr. A (10) witzend 4, 1968
Mr. A (1) c. 1968 and reprinted THE DITKO COLLECTION, p. 19, bottom right
Mr. A (1) c. 1968 and reprinted COLLECTION, p. 20; a variation of the spot in Eon 3
Mr. A (1) Comic Crusader 4, Dec. 1968, reprinted COLLECTION, p. 20, lower left
Mr. A (1) Sense of Wonder 6, Dec. 1968 cover, reprinted COLLECTION, p. 19, top right
Mr. A (1) Comic Crusader 5, Spring 1969, reprinted COLLECTION, p. 20, lower right
“The Avenging World” (10) witzend 6, Spring 1969
Mr. A: “Violence, the Phoney Issue” Guts 5, Summer 1969
Mr. A: “What Happens to a Man When He Refuses to Uphold the Good?” (4) Comic Crusader 6 Summer, 1969
Mr. A: “What Happens to a Man When He Refuses to Uphold the Good?”, conclusion (4) Comic Crusader 7 Fall, 1969
Mr. A spot Journey into Comics 5, 1969
Mr. A (1) Eon 3, 1969
Mr. A (1) Super Adventures 10, 1969, reprinted COLLECTION, p. 42
Mr. A (1) published in fanzine included in k-a mailing #59, September 1969 but what is the name of that fanzine?
[Does Mr. A appear in:
Comic Artist 6, 1969
Junk 1, 1969
Donald Campbell’s Differo 2 and 3, 1969
or Campbell’s Drift 1, 1969?]
“The Avenging World”, part 2 (8) witzend 7, Spring 1970
Mr. A (1) The Collector 19, May 1970, reprinted COLLECTION, p. 19, bottom left
Mr. A (1) All Stars 2, 1970, reprinted COLLECTION, p. 20, upper left
Mr. A (5) Graphic Illusions Summer 1971
Graphic Illusions back cover, reprinted COLLECTION, p. 49
(The cover and feature listed above were originally intended for Keith Tucker’s Graphic Illustrations, 3, 1969)
Mr. A (8) Comic Crusader 13, 1972
Mr. A: “The Defenders” (6) Sense of Wonder 11, Spring 1972
The Collector 26, Summer 1972 wrap-around cover
Mr. A: “When Is a Man to be Judged Evil?” (6) The Collector 26, Summer 1972
Mr. A San Diego Comic-Con 1972 reprinted COLLECTION, p. 70
Mr. A: “The Polluters” (1) Chronicle 3, March 1973, reprinted COLLECTION, p. 19, top left
Mr. A (1) Quintessence 22, May 1973, reprinted COLLECTION, p. 43
Mr. A 1973 cover
“...Right to Kill” (9) Mr. A 1973
Mr. A 1973 bc
Epoch 4, 1973? ifc, reprinted COLLECTION, p. 61
Mr. A 2, 1975 cover
Mr. A: “Count Rogue” (16) Mr. A 2
Mr. A (16) Mr. A 2
Mr. A 2 back cover
Mr. A: “To the San Diego Con of 75” San Diego Comic-Con 1975
Mr. A: “..to the San Diego Comic-Con of 1976” San Diego Comic Con 1976
Mr. A (10) Comic Crusader Storybook 1978
Mr. A (1) c. 1969, The Ditko Collection, 1985; this piece is a variation of the cover to The Collector 26, 1972
Narration by Ditko, Masters of Comic Book Art 1989 (Rhino Home Video)
Ad for Mr. A 1991?
Mr. A (1) Sticker #1 Steve Ditko’s Mr. A Collector’s Sticker Series #1 1991 (Allied American Artists)
Mr. A 1-4 1990-91 [Unpublished]
Mr. A 1, 1990 back cover The Comics! November 1999
Steve Ditko's 176-Page Package: Heroes 2000 cover
“Mr. A and the Knifer” (30) Steve Ditko's 176-Page Package: Heroes 2000
…Ditko Continued… Jan. 2009 cover
Mr. A (4) …Ditko Continued… Jan. 2009
Oh, No! Not Again, Ditko! March 2009 cover
Mr. A, conclusion (4) Oh, No! Not Again, Ditko! March 2009