According to the bio on Wikipedia: "Douglas S. Wildey (May 2, 1922 – October 5, 1994) was an American cartoonist and comic book artist best known for creating the 1964 animated television series Jonny Quest for Hanna-Barbera Productions.
Wildey was born and raised in Yonkers, New York, adjacent to New York City. He did World War II military service at Naval Air Station Barbers Point in Hawaii, where he began his art career as a cartoonist for the base newspaper. He recalled his professional start as freelancing for the magazine and comic book company Street & Smith in 1947. Because comic-book writer and artist credits were not routinely given during this era, the earliest confirmed Wildey works are two signed pieces in this publisher's Top Secret #9 (June 1949): a one-page house ad and the 10-page adventure story "Queen in Jeopardy", by an unknown writer.
He went on to draw primarily Western stories for Youthful Magazines comics including Buffalo Bill, Gunsmoke (unrelated to the later television series), and Indian Fighter. He also contributed to the publishers Master Comics, Story Comics, Cross Publications and possibly others, puckishly observing that he'd worked for every publisher except EC, "the good one".
In 1952, Wildey moved his family — wife Ellen and daughter Debbie — to Tucson, Arizona. Two years later, he began a regular stint at Atlas Comics, the 1950s forerunner of Marvel Comics, where he drew dozens of Western stories through 1957, primarily four- and five-page tales in such titles as Frontier Western. His art also appeared in the Atlas horror-fantasy comics Journey into Unknown Worlds, Marvel Tales, Mystery Tales, Mystic, Strange Tales, Uncanny Tales, and others."