The Kents made few appearances in Superman stories until the introduction of the Superboy comic book series in 1949. In this series, they are regular supporting characters of the teenage superhero. The Superboy stories establish the Kents' backstory. Jonathan, a former race car driver,Superboy #196 (Sep. 1973) is a farmer on a farm just outside Smallville. After he and Martha find the toddler Kal-El in his rocket, they take him to the Smallville Orphanage and later formally adopt him, naming him "Clark". They soon discover that Clark possesses a fantastic array of superpowers. Around the time Clark starts school, the Kents sell their farm, and the family moves into Smallville, where they open a general store. During Clark's early grade school years, Jonathan trains young Clark in the use of his superpowers to the best of his knowledge while urging him to keep the use of his powers a secret. At the age of eight,New Adventures of Superboy #1 (Jan. 1980) Clark begins a superhero career as Superboy. Martha creates Superboy's costume out of the blankets inside the rocket that brought him to Earth, and Jonathan helps him to create a means of making Superboy and Clark appear to be different people by developing Clark's secret identity as a mild-mannered, reserved individual. The Kents assist their adopted son on many adventures as Superboy.
