| Issue | #20 |
| Published | January 1948 |
| Cover Price | 0.10 |
| Pages | 36 |
| Editing | ? |
| Characters | Mary Marvel; Freckles |
| Genre | superhero |
| Pencils | Jack Binder |
| Inks | Jack Binder |
| Characters | Mary Marvel; Georgia Sivana |
| Synopsis | Georgia Sivana thinks she has put Mary out of the way, using robotic doubles, in order to steal the Royal Diadem....but she's wrong! |
| Genre | superhero |
| Script | Otto Binder |
| Notes | Characters, reprint info and synopsis added by Craig Delich (Jan. 14, 2007). |
| Reprinted | in Mary Marvel Fanzine (Mike Bromberg, 2004 series) #4 (October 2005) |
| Genre | adventure |
| Script | Lawrence Steinfeldt (signed) |
| Letters | typeset |
| Characters | Freddie |
| Genre | teen humor |
| Characters | Mary Marvel; Freckles |
| Synopsis | Freckles encourages Mary to come along w/the gang on a sleigh ride....but it's Mary Marvel who saves the day, really giving the gang a ride! |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | Jack Binder |
| Inks | Jack Binder |
| Notes | Characters, reprint info and synposis added by Craig Delich (Jan. 14, 2007). |
| Reprinted | in Mary Marvel Fanzine (Mike Bromberg, 2004 series) #4 (October 2005) |
| Characters | Peewee Pete |
| Genre | humor |
| Characters | Mary Marvel; V: Wart & Sentro (I) |
| Synopsis | Her friend Teddy gives bottle collector Mary two unusual bottles for her collection, which proves nearly disastrous when two evil imps escape from them and reek havoc! |
| Genre | superhero |
| Script | Otto Binder |
| Notes | Characters, reprint info and synopsis added by Craig Delich (Jan. 14, 2007). |
| Reprinted | In Marvel Marvel fanzine (October, 2005), independently published by Mike Blomberg. |