| Issue | #19 |
| Published | March-April 1949 |
| Cover Price | 0.10 |
| Pages | 52 |
| Editing | Whitney Ellsworth (credited); Jack Schiff (actual) |
| Pencils | Curt Swan |
| Characters | Arthur Conan Doyle |
| Genre | bio |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Jack Lehti ? |
| Inks | Jack Lehti ? |
| Pencils | Irwin Hasen |
| Inks | Irwin Hasen |
| Characters | Samuel Colt |
| Genre | Fact |
| Script | Jack Schiff; Bernard Breslauer; George Kashdan |
| Pencils | Win Mortimer |
| Inks | Win Mortimer |
| Notes | Information on this sequence taken from the World's Finest Comics #194 index. |
| Reprinted | in World's Finest Comics (DC, 1941 series) #194 (June 1970) |
| Genre | sports |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Letters | Henry Boltinoff |
| Genre | Fact |
| Script | Jack Schiff; Bernard Breslauer; George Kashdan |
| Pencils | Will Ely ? |
| Inks | Will Ely ? |
| Notes | Information on this sequence taken from the World's Finest Comics #194 index. |
| Reprinted | in World's Finest Comics (DC, 1941 series) #194 (June 1970) |
| Characters | Casey Jones |
| Genre | bio |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Howard Sherman |
| Inks | Howard Sherman |
| Characters | W. B. "Skeet" Miller |
| Genre | bio |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Stookie Allen |
| Inks | Stookie Allen |
| Synopsis | Annin and Company, largest flag maker in the world. |
| Genre | fact |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Chuck Winter |
| Inks | Chuck Winter |
| Characters | Donald Reed; Fred and Linda Rudolph; Marjorie Gilbert; Billy Zelayeta; Larry Workman; Georgie Rand; Freddie Doheny; Janet Waldo; Patty Wilkins; Jimmy Touts; Jackie Shea; Jean Houk |
| Genre | bio |
| Script | Stookie Allen |
| Pencils | Stookie Allen |
| Inks | Stookie Allen |
| Genre | fact |
| Script | Henry Boltinoff |
| Pencils | Henry Boltinoff |
| Inks | Henry Boltinoff |
| Characters | William Bendix |
| Genre | bio |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | George Roussos |
| Inks | Dan Barry |
| Characters | Jimmy Jemail |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Win Mortimer |
| Inks | Win Mortimer |
| Genre | fact |
| Script | Jack Liebowitz |
| Letters | typeset |
| Notes | National Comics Publications 480 Lexington Ave NY, NY Editor F. W. Ellsworth Owners H Donenfeld, J S Liebowitz, P Sampliner, Gussie Donenfeld, Rose Liebowitz, Sophie Sampliner, Irwin Donenfeld, Sonia Donenfeld, Frederick Iger, Arlene Donenfeld |
| Genre | fact |
| Pencils | Raymond Perry |
| Inks | Raymond Perry |
| Colors | Raymond Perry |
| Letters | typeset |
| Characters | Alan Tate |
| Genre | fact |
| Script | Jack Schiff; Mort Weisinger; Bernie Breslauer |
| Pencils | Curt Swan ? |