
#101
Oct 1949
Catalog data from Metron and the Grand Comics Database is licensed CC BY-SA 4.0 and was normalized by The Collector. Cover images belong to their publishers.

#101
Oct 1949

#102
Nov 1949
1st appearance of Prof. Proteus

#103
Dec 1949

#104
Jan 1950

#105
Feb 1950

#106
Mar 1950

#107
Apr 1950

#108
May 1950

#109
Jun 1950
1st appearance of Dr. Thomas Madison

#110
Jul 1950

#111
Aug 1950

#112
Sep 1950

#113
Oct 1950

#114
Nov 1950
1st appearance of The Ape Mastermind

#115
Dec 1950

#116
Jan 1951

#117
Feb 1951

#118
Mar 1951

#119
Apr 1951
1st appearance of a giant

#120
May 1951
1st appearance of Doc Omega

#121
Jun 1951

#122
Jul 1951

#123
Aug 1951

#124
Sep 1951
1st appearance of Don Quixote

#125
Oct 1951

#126
Nov 1951

#127
Dec 1951

#128
Jan 1952

#129
Feb 1952

#130
Mar 1952

#131
Apr 1952

#132
May 1952

#133
Jun 1952
1st appearance of Ma Potter

#134
Jul 1952

#135
Aug 1952

#136
Sep 1952

#137
Oct 1952

#138
Nov 1952

#139
Dec 1952
1st appearance of The Red Crusher

#140
Jan 1953
1st appearance of Eric the Red

#141
Feb 1953

#142
Mar 1953
1st appearance of Black Beauty

#143
Apr 1953

#144
May 1953

#145
Jun 1953

#146
Jul 1953
1st appearance of The Mirage Maker

#147
Aug 1953

#148
Sep 1953

#149
Oct 1953

#150
Nov 1953
1st appearance of Theo Hagge
First appearances, origins and turning points, led by the debuts of the characters who appear most across the catalog.

#38
Aug 1944
1st appearance of Captain Ghost

#79
Dec 1947
1st appearance of Tawky Tawny

#22
Mar 1943
1st cameo appearance of Crocodile-Man

#140
Jan 1953
1st appearance of Eric the Red

#124
Sep 1951
1st appearance of Don Quixote

#40
Oct 1944
1st appearance of Richard Richard

#133
Jun 1952
1st appearance of Ma Potter

#36
Jun 1944
1st appearance of Jeepers

#9
Apr 1942
1st appearance of Professor Edgewise

#119
Apr 1951
1st appearance of a giant

#91
Dec 1948
1st appearance of Merman

#39
Sep 1944
1st appearance of Bonzo
Who made the most issues of this run, with the issues they span.
Who appears most often in this run, by issues they appear in.
Characters who debut here, led by those who appear most across the catalog. 54 in all.
These indexes incorporate information from Ray Miller's Captain Marvel Adventures index in RBCC #96-99. Thanks to Pat, Jerry, Mike, and Murray. Information on Fawcett Comics' annual sales of Captain Marvel Adventures magazine from 1941 to the mid-1950s is taken from the book "Juvenile Delinquency" (from 1950).
CIRCULATION DATA 1941 - 2,631,934 1942 - 6,447,715 1943 - 11,834,535 1944 - 14,067,800 1945 - 11,547,728 1946 - 9,974,702 1947 - 9,024,563 1948 - 8,959,717 1949 - 7,041,329 1950 (First 6 months) - 3,023,220
1944
Jan 1944 – 1,245,638 Feb 1944 – 1,340,438 Mar 1944 – 1,364,263 Apr 1944 – 1,339,950 May 1944 – 1,360,524 Jun 1944 – 1,288,428 Jul 1944 – 1,157,573 Aug 1944 – 1,250,692 Sep 1944 – 1,264,726 Oct 1944 – 1,239,400 Nov 1944 – 1,216,168 Dec 1944 – No issue published
1945
Jan 1945 – 1,233,413 Feb 1945 – 1,231,833 Mar 1945 – 1,184,315 Apr 1945 – 1,267,811 May 1945 – 1,272,721 Jun 1945 – No issue published Jul 1945 – 1,342,174 Aug/Sep 1945 – 1,347,037 Oct/Nov 1945 – 1,284,867 Dec 1945 – 1383,557
1946
Jan 1946 – 1,384,993 Feb 1946 – 944,849 Mar 1946 – 936,605 Apr 1946 – 745,323 May 1946 – 696,401 Jun 1946 – 534,752 Jul 1946 – 712,161 Aug 1946 – 802,495 Sep 1946 – 793,582 Oct 1946 – 755,027 Nov 1946 – 852,635 Dec 1946 – 815,889
From the Grand Comics Database.