Seems like no one wanted to be the EIC of Marvel for too long in the mid 70s. After Roy Thomas stepped down after his own relatively short reign, we've had Len Wein from a portion of 1974 to a portion of 1975, Marv Wolfman editing the B&W magazines from 1974-1975 and the whole line for the rest of 1975 and a portion of 1976, and Gerry Conway for a portion of 1976. Archie Goodwin's semi-stable reign begins in 1976, so Conway must have been EIC for all of ten minutes.

• 1975
• 1976

	Jungle Action #13-15
	Master of Kung Fu #24
	Daredevil #116-117
	Ka-Zar #7
	Haunt of Horror #5 (Satana)
	Marvel Two-In-One #6-7
	Defenders #20
	Defenders #21
	Fantastic Four #151-153
	Marvel Team-Up #30
	Fantastic Four #154
	Giant-Size Fantastic Four #3
	Giant-Size Man-Thing #2
	Giant-Size Defenders #3
	Master of Kung Fu #25
	Man-Thing #9-10
	Amazing Spider-Man #141-142
	Man-Thing #11
	Marvel Team-Up #31
	Marvel Spotlight #20-22
	Marvel Premiere #20-23 1st Misty Knight
	Power Man #23
	Fantastic Four #155-157
	Master of Kung Fu #26
	Man-Thing #12
	Giant-Size Spider-Man #4
	Ghost Rider #11
	Hulk #184-186
	Iron Man #73
	Marvel Two-In-One #8
	Hulk #187-188
	Man-Thing #13-14
	Ka-Zar #8
	Hulk #189
	Giant-Size Man-Thing #3
	Marvel Team-Up #32
	Hulk #190-191
	Man-Thing #15
	Hulk #192
	Master of Kung Fu #27
	Marvel Spotlight #23
	Hulk #193
	Thor #232-236
	Marvel Two-In-One #9
	Iron Man #78
	Amazing Spider-Man #143
	Giant-Size Master of Kung Fu #3
	Giant-Size Defenders #4
	Power Man #24-25 1st Black Goliath
	Fear #27-31
	Iron Man #74-75,77,80-81
	Amazing Spider-Man #144-146
	Marvel Team-Up #33
	Marvel Team-Up #34-35
	Master of Kung Fu #28
	Man-Thing #16
	Giant-Size Man-Thing #4
	Giant-Size Man-Thing #4 (Howard the Duck)
	Defenders #22-25
	Man-Thing #17-18
	Giant-Size X-Men #1 New X-Men team. 1st Storm, Nightcrawler, Colossus, Storm, and Thunderbird.
	Giant-Size X-Men #3
	Classic X-Men #1 (2nd story)
	Master of Kung Fu #29-31
	Jungle Action #16
	Ghost Rider #12-13
	Captain America #191
	Avengers #137-138 J: Beast, Moondragon. Yellowjacket & Wasp return.
	Man-Thing #19-22
	Frankenstein #17-18
	Giant-Size Defenders #5
	Defenders #26-29
	Marvel Premiere #24-25
	Avengers #139-140
	Astonishing Tales #31
	Amazing Spider-Man #147-150 1st Spider-clone
	Giant-Size Fantastic Four #4 1st Madrox the Multiple Man
	Uncanny X-Men #94-95
	Marvel Two-In-One #10
	Giant-Size Man-Thing #5 (Howard the Duck)
	Fantastic Four #158-159
	Dead of Night #11
	Power Man #26
	Jungle Action #17
	Marvel Premiere #45-46
	Master of Kung Fu #32
	Captain America #189-190
	Marvel Preview Magazine #3
	Werewolf By Night #32-33 1st Moon Knight
	Marvel Chillers #1
	Marvel Team-Up #36-37
	Master of Kung Fu #33-35
	Marvel Team-Up #38
	Marvel Chillers #3
	Fantastic Four #160-163
	Inhumans #1-2
	Marvel Spotlight #24
	Power Man #27
	Giant-Size Super-Villain Team-Up #2
	Super-Villain Team-Up #1-4
	Marvel Presents #1-2
	Doctor Strange #10-13 Earth destroyed, replaced with exact replica
	Jungle Action #18
	Captain America #192
	Marvel Two-In-One #11
	Inhumans #3-6
	Iron Fist #1-4
	Marvel Chillers #4
	Avengers #141-144,147-149
	Amazing Spider-Man #151-152
	Marvel Two-In-One #12
	Marvel Team-Up #40
	Thor #237-239
	Fantastic Four #164-165 1st Frankie Raye (Nova)
	Captain Marvel #41
	Defenders #30
	Marvel Preview #7 (Satana)
	Marvel Chillers #2
	Uncanny X-Men #96
	Marvel Premiere #27
	Son of Satan #1
	Hulk #194
	Power Man #29
	Eternals #1-19, Annual #1 The coming of the Fourth Celestial Host
	Master of Kung Fu #36-37
	Marvel Team-Up #43-44
	Marvel Team-Up #45
	Marvel Team-Up #46
	Power Man #28,30-31
	Marvel Two-In-One #13
	Marvel Two-In-One #14
	Marvel Two-In-One #15
	Marvel Two-In-One #16-17
	Marvel Team-Up #47
	Marvel Two-In-One #18
	Marvel Two-In-One #19
	Marvel Chillers #5-7
	Fantastic Four #166-167
	Defenders #31
	Howard the Duck #1-3
	Captain Marvel #42
	Jungle Action #19
	Ka-Zar #14-20
	Defenders #32-33
	Amazing Spider-Man #153
	Uncanny X-Men #97
	Marvel Premiere #28 Legion of Monsters
	Marvel Tales #100 (Hawkeye)
	Marvel Spotlight #26
	Master of Kung Fu #38-39
	Fantastic Four #168-170
	Amazing Spider-Man #154
	Jungle Action #20-21
	Captain Marvel #43-46
	Black Goliath #1-3
	Defenders #34
	Avengers #145-146
	Amazing Spider-Man #155
	Daredevil #131-132 1st Bullseye
	Iron Man #82-83
	Fantastic Four annual #11
	Marvel Two-In-One annual #1
	Marvel Two-In-One #20
	Daredevil #133
	Master of Kung Fu #40
	Defenders #35
	Omega The Unknown #1-10
	Defenders #36-38
	Hulk #195
	Amazing Spider-Man #156
	Power Man #32
	Daredevil #134
	Iron Man #84-85
	Daredevil #135-137
	Amazing Spider-Man #157-159
	Amazing Spider-Man annual #10
	Amazing Spider-Man #160
	Hulk #196
	Tomb of Dracula #44
	Doctor Strange #14
	Tomb of Dracula #45-46
	Doctor Strange #15-16
	Hulk #197-198
	Amazing Spider-Man #161-162
	Hulk annual #5
	Iron Man #86-87
	Hulk #199
	Master of Kung Fu #41
	Iron Man annual #3
	Captain America #193-200
	Iron Man #88-91
	Marvel Treasury Special: Captain America's Bicentennial Battles Captain America #201-203
	Ghost Rider #14-15
	Ghost Rider #16
	Champions #1-10 1st Champions, 1st Darkstar
	Marvel Team-Up #48-51 1st Jean DeWolff & Wraith
	Ghost Rider #17-19
	Daredevil #138
	Ghost Rider #20
	Avengers #150-151 New Avengers lineup: Vision, Scarlet Witch, Beast, Captain America, Wasp, Yellowjacket, Iron Man
	Avengers #152
	Amazing Spider-Man #163-164
	Peter Parker, the Spectacular Spider-Man #1
	Peter Parker, the Spectacular Spider-Man #2
	Peter Parker, the Spectacular Spider-Man #3
	Hulk #200
	Fantastic Four #171-175
	Doctor Strange #17-19
	Thor #240-245
	Super-Villain Team-Up #5
	Daredevil annual #4
	Super-Villain Team-Up #6-7
	Son of Satan #2-3
	Marvel Premiere #26
	Hulk #201
	Marvel Two-In-One #21-23
	Master of Kung Fu #42
	Thor #246-247
	Master of Kung Fu annual #1
	Amazing Spider-Man #165-166
	Iron Fist #5-7
	Defenders #39
	Peter Parker, the Spectacular Spider-Man #4-5 1st Hitman
	Marvel Spotlight #30
	Black Goliath #4-5
	Amazing Spider-Man #167-168
	Jungle Action #22
	Marvel Two-In-One #24
	Power Man #33
	Deadly Hands of Kung Fu #31-32
	Iron Fist #8-10
	Howard the Duck #4
	Thor #248-250
	Marvel Two-In-One #25
	Amazing Spider-Man #169-170
	Son of Satan #4-7
	Doctor Strange #20
	Dr. Strange annual #1
	Doctor Strange #22
	Marvel Spotlight #33
	Marvel Two-In-One #26-27
	Marvel Spotlight #32 1st Spider-Woman
	Master of Kung Fu #43
	Power Man #34
	Master of Kung Fu #44-45
	Marvel Premiere #31 1st Woodgod
	Hulk #202-203
	Power Man #35
	Master of Kung Fu #46
	Nova #1 1st Nova
	Thor #251
	Power Man annual #1
	Master of Kung Fu #47
	Hulk #204-205
	Defenders #40
	Master of Kung Fu #48-51
	Marvel Two-In-One #29-32
	Marvel Two-In-One #33
	Nova #2
	Hulk #206-207
	Captain Britain #1-2
	Marvel Preview Magazine #8
	Marvel Premiere #32 1st Monark Starstalker
	Inhumans #7-8,10
	Hulk #208
	Defenders annual #1
	Nova #3
	Thor #252-253
	Defenders #41
	Hulk annual #6 1st Kismet
	Avengers #153
	Inhumans #11
	Avengers annual #6
	Captain Marvel #47
	Power Man #37-40
	Nova #4
	Thor #255
	Howard the Duck #5-7 / Marvel Treasury Edition #12
	Howard the Duck #8 Howard the Duck runs for President
	Thor #256-257
	Jungle Action #24
	Inhumans #12
	Tomb of Dracula #50-51
	Daredevil #139
	Captain Marvel #48-49
	Thor #258-259
	Tomb of Dracula #52
	Ms. Marvel #1 1st Ms. Marvel
	Marvel Spotlight #31 Infinity Formula
	Captain Marvel #50-53
	Defenders #42-43
	Thor #260-266
	Super-Villain Team-Up #8
	Tomb of Dracula #53
	Avengers #154
	Super-Villain Team-Up #9
	Avengers #155-156
	Uncanny X-Men #98-101 1st Phoenix, 1st Black Tom
	Daredevil #140
	Marvel Team-Up annual #1
	Marvel Team-Up #53-54
	Uncanny X-Men #102-103
	Fantastic Four #176-178
	Marvel Two-In-One #35-36
	Iron Man #93-94
	Logan's Run #6 (Thanos)