The Duke ain't afraid of nothing...
...as this story, one of the few to be published twice during the run of Toby's John Wayne Adventures, shows!
In the 40s and 50s, a number of Western movie, radio, and tv stars (not characters, stars) had comics based on them, including Gene Autry, Roy Rogers, Tom Mix, Charles Starrett, Tim Holt, and Lash Larue. Even co-stars and sidekicks like Dale Evans and Gabby Hayes had titles!
Stars like Buster Crabbe and John Wayne also had comics which primarily ran Western tales, but also did stories based on the other genres they appeared in.
In the case of The Duke, his title also had WWII and high adventure stories.
Interestingly, all the stories featured John Wayne as John Wayne, not as a character like Rooster Cogburn or Ethan Edwards!