| Issue | #20 |
| Published | February 1948 |
| Cover Price | 0.10 USD |
| Pages | 52 |
| Editing | Wendell Crowley |
| Characters | Mary Marvel; Captain Marvel; Captain Marvel Jr.; Mary Batson; Billy Batson; Freddy Freeman |
| Genre | superhero |
| Reprinted | in Marvel Family, The (Anglo-American Publishing Company Limited, 1948 series) #20 [cover] |
| Characters | The Marvel Family |
| Genre | superhero |
| Characters | Captain Marvel Jr. [Freddy Freeman] |
| Genre | superhero |
| Characters | Mary Marvel; V: Mr. Cotter |
| Synopsis | Mary must stop the evil financial intentions of Mr. Cotter, who has gone to the lengths of stealing the town's little red schoolhouse so that he can become wealthy building a new schoolhouse for the town. |
| Genre | superhero |
| Script | Otto Binder? |
| Pencils | Jack Binder |
| Inks | Jack Binder |
| Notes | All info added by Craig Delich (January 21, 2007). |
| Reprinted | in Mary Marvel Fanzine (Mike Bromberg, 2004 series) #5 (December 2005) |
| Genre | gag |
| Genre | adventure |
| Script | Rod Reed (Clement Good) (signed) |
| Letters | typeset |
| Characters | Captain Mavel [Billy Batson] |
| Genre | superhero |
| Script | Otto Binder |
| Pencils | C. C. Beck |
| Inks | C. C. Beck |
| Reprinted | in Limited Collectors' Edition (DC, 1972 series) #C-27 (1974) |