Actually the "Swamp Rats" was a Phantom story, but I liked the title so much I use it every now and then. Sheena was one of the first jungle girls in comics. A number of people claimed to have come up with the character, including Will Eisner, who never actually worked on the strip.
This story was originally published in JUMBO COMICS #127 in 1949 and was drawn by Robert Webb.
Reblogged from http://pappysgoldenage.blogspot.com